Update CHANGELOG.md

Translated in 🇺🇦 and 🇷🇺 languages (#80 )
small template fixes
2024-08-30 18:22:40 +00:00 · 2022-03-24 00:32:40 +05:00 · 2022-03-24 00:31:34 +05:00 · 2022-03-23 12:30:33 +05:00 · 2022-03-22 23:46:01 +05:00 · 2022-03-22 23:44:31 +05:00
52 changed files with 2329 additions and 531 deletions
--- a/.github/ISSUE_TEMPLATE/bug-report.yml
+++ b/.github/ISSUE_TEMPLATE/bug-report.yml
@ -12,6 +12,8 @@ body:
      options:
        - label: I have searched the existing issues
          required: true
+        - label: And it has nothing to do with Traefik
+          required: true

  - type: textarea
    attributes:
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@ -6,3 +6,7 @@ contact_links:
  - name: 🗣 Ask a Question, Discuss
    url: https://github.com/tarampampam/error-pages/discussions
    about: Feel free to ask anything
+
+  - name: 🌀 I have a question about Traefik..
+    url: https://community.traefik.io/
+    about: In this case - ask in the Traefik community
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@ -10,7 +10,7 @@ jobs:
    name: Docker Hub Description
    runs-on: ubuntu-20.04
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3

      - uses: peter-evans/dockerhub-description@v2 # Action page: <https://github.com/peter-evans/dockerhub-description>
        with:
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@ -15,9 +15,9 @@ jobs:
        arch: [amd64]  # amd64, 386
    steps:
      - uses: actions/setup-go@v2
-        with: {go-version: 1.17.5}
+        with: {go-version: 1.18.0}

-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3

      - uses: gacts/github-slug@v1
        id: slug
@ -46,7 +46,7 @@ jobs:
    name: Build docker image
    runs-on: ubuntu-20.04
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3

      - uses: gacts/github-slug@v1
        id: slug
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@ -13,7 +13,7 @@ jobs: # Docs: <https://git.io/JvxXE>
    name: Gitleaks
    runs-on: ubuntu-20.04
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
        with: {fetch-depth: 0}

      - uses: zricethezav/gitleaks-action@v1 # Action page: <https://github.com/zricethezav/gitleaks-action>
@ -22,10 +22,13 @@ jobs: # Docs: <https://git.io/JvxXE>
    name: Golang-CI (lint)
    runs-on: ubuntu-20.04
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-go@v2
+        with: {go-version: 1.17} # On v1.18 I had an error "panic: load embedded ruleguard rules: rules/rules.go:13: can't load fmt"

      - name: Run linter
-        uses: golangci/golangci-lint-action@v2 # Action page: <https://github.com/golangci/golangci-lint-action>
+        uses: golangci/golangci-lint-action@v3 # Action page: <https://github.com/golangci/golangci-lint-action>
        with:
          version: v1.44 # without patch version
          only-new-issues: false # show only new issues if it's a pull request
@ -34,9 +37,9 @@ jobs: # Docs: <https://git.io/JvxXE>
    name: Validate config file
    runs-on: ubuntu-20.04
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3

-      - uses: actions/setup-node@v2
+      - uses: actions/setup-node@v3
        with: {node-version: '16'}

      - name: Install linter
@ -50,9 +53,9 @@ jobs: # Docs: <https://git.io/JvxXE>
    runs-on: ubuntu-20.04
    steps:
      - uses: actions/setup-go@v2
-        with: {go-version: 1.17}
+        with: {go-version: 1.18}

-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
        with: {fetch-depth: 2} # Fixes codecov error 'Issue detecting commit SHA'

      - name: Go modules Cache # Docs: <https://git.io/JfAKn#go---modules>
@ -86,9 +89,9 @@ jobs: # Docs: <https://git.io/JvxXE>
    needs: [golangci-lint, go-test, validate-config-file]
    steps:
      - uses: actions/setup-go@v2
-        with: {go-version: 1.17}
+        with: {go-version: 1.18}

-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3

      - uses: gacts/github-slug@v1
        id: slug
@ -126,7 +129,7 @@ jobs: # Docs: <https://git.io/JvxXE>
    runs-on: ubuntu-20.04
    needs: [build]
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3

      - uses: actions/download-artifact@v2
        with:
@ -150,13 +153,16 @@ jobs: # Docs: <https://git.io/JvxXE>
          test -f ./out/noise/404.html
          test -f ./out/hacker-terminal/404.html
          test -f ./out/cats/404.html
+          test -f ./out/lost-in-space/404.html
+          test -f ./out/app-down/404.html
+          test -f ./out/connection/404.html

  docker-image:
    name: Build docker image
    runs-on: ubuntu-20.04
    needs: [golangci-lint, go-test, validate-config-file]
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3

      - uses: gacts/github-slug@v1
        id: slug
@ -182,21 +188,25 @@ jobs: # Docs: <https://git.io/JvxXE>
    runs-on: ubuntu-20.04
    needs: [docker-image]
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3 # is needed for `upload-sarif` action

      - uses: actions/download-artifact@v2
        with:
          name: docker-image
          path: .artifact

-      - working-directory: .artifact
-        run: docker load < docker-image.tar
-
-      - uses: anchore/scan-action@v3 # action page: <https://github.com/anchore/scan-action>
+      - uses: aquasecurity/trivy-action@0.2.2 # action page: <https://github.com/aquasecurity/trivy-action>
        with:
-          image: app:ci
-          fail-build: true
-          severity-cutoff: low # negligible, low, medium, high or critical
+          input: .artifact/docker-image.tar
+          format: sarif
+          severity: MEDIUM,HIGH,CRITICAL
+          exit-code: 1
+          output: trivy-results.sarif
+
+      - uses: github/codeql-action/upload-sarif@v1
+        if: always()
+        continue-on-error: true
+        with: {sarif_file: trivy-results.sarif}

  poke-docker-image:
    name: Run the docker image
@ -204,7 +214,7 @@ jobs: # Docs: <https://git.io/JvxXE>
    needs: [docker-image]
    timeout-minutes: 2
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3

      - uses: actions/download-artifact@v2
        with:
@ -223,7 +233,7 @@ jobs: # Docs: <https://git.io/JvxXE>
        run: sudo dpkg -i hurl.deb

      - name: Run container with the app
-        run: docker run --rm -d -p "8080:8080/tcp" -e "SHOW_DETAILS=true" --name app app:ci
+        run: docker run --rm -d -p "8080:8080/tcp" -e "SHOW_DETAILS=true" -e "PROXY_HTTP_HEADERS=X-Foo,Bar,Baz_blah" --name app app:ci

      - name: Wait for container "healthy" state
        run: until [[ "`docker inspect -f {{.State.Health.Status}} app`" == "healthy" ]]; do echo "wait 1 sec.."; sleep 1; done
--- a/.golangci.yml
+++ b/.golangci.yml
@ -42,7 +42,9 @@ linters: # All available linters list: <https://golangci-lint.run/usage/linters/
  disable-all: true
  enable:
    - asciicheck # Simple linter to check that your code does not contain non-ASCII identifiers
+    - bidichk # Checks for dangerous unicode character sequences
    - bodyclose # Checks whether HTTP response body is closed successfully
+    - contextcheck # check the function whether use a non-inherited context
    - deadcode # Finds unused code
    - depguard # Go linter that checks if package imports are in a list of acceptable packages
    - dogsled # Checks assignments with too many blank identifiers (e.g. x, _, _, _, := f())
--- a/.grype.yaml
+++ b/.grype.yaml
@ -1,3 +0,0 @@
-ignore:
-  # temporary ignore this CVE as false positive on the Go package
-  - vulnerability: CVE-2015-5237
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -4,12 +4,93 @@ All notable changes to this package will be documented in this file.

 The format is based on [Keep a Changelog][keepachangelog] and this project adheres to [Semantic Versioning][semver].

+## v2.10.0
+
+### Changed
+
+- Error pages now translated in 🇺🇦 and 🇷🇺 languages [#80]
+
+[#80]:https://github.com/tarampampam/error-pages/pull/80
+
+## v2.9.0
+
+### Added
+
+- Template `connection` [#79]
+
+[#79]:https://github.com/tarampampam/error-pages/pull/79
+
+## v2.8.1
+
+### Fixed
+
+- Dark mode for `app-down` template
+
+### Changed
+
+- The index page for built error pages now supports a dark theme
+
+## v2.8.0
+
+### Added
+
+- Template `app-down` [#74]
+
+### Changed
+
+- Go updated from `1.17.6` up to `1.18.0`
+
+[#74]:https://github.com/tarampampam/error-pages/pull/74
+
+## v2.7.0
+
+### Changed
+
+- Logs includes request/response headers now [#67]
+
+### Added
+
+- Possibility to proxy HTTP headers from the requests to the responses (can be enabled using `--proxy-headers` flag for the `serve` command or environment variable `PROXY_HTTP_HEADERS`, headers list should be comma-separated) [#67]
+- Template `lost-in-space` [#68]
+
+### Fixed
+
+- Template `l7-light` uses the dark colors in the browsers with the preferred dark theme
+
+[#67]:https://github.com/tarampampam/error-pages/pull/67
+[#68]:https://github.com/tarampampam/error-pages/pull/68
+
+## v2.6.0
+
+### Added
+
+- Possibility to change the template to the random once a day using "special" template name `random-daily` (or hourly, using `random-hourly`) [#48]
+
+[#48]:https://github.com/tarampampam/error-pages/issues/48
+
+## v2.5.0
+
+### Changed
+
+- Go updated from `1.17.5` up to `1.17.6`
+
+### Added
+
+- `Host` and `X-Forwarded-For` Header to error pages [#61]
+
+### Fixed
+
+- Performance issue, that affects template rendering. Now templates are cached in memory (for 2 seconds), and it has improved performance by more than 200% [#60]
+
+[#60]:https://github.com/tarampampam/error-pages/pull/60
+[#61]:https://github.com/tarampampam/error-pages/pull/61
+
 ## v2.4.0

 ### Changed

 - It is now possible to use [golang-tags of templates](https://pkg.go.dev/text/template) in error page templates and formatted (`json`, `xml`) responses [#49]
- Health-check route become `/healthz` (instead `/health/live`, previous route marked ad deprecated) [#49]
+- Health-check route become `/healthz` (instead `/health/live`, previous route marked as deprecated) [#49]

 ### Added

--- a/2
+++ b/2
@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1.2

 # Image page: <https://hub.docker.com/_/golang>
-FROM golang:1.17.5-alpine as builder
+FROM golang:1.18.0-alpine as builder

 # can be passed with any prefix (like `v1.2.3@GITHASH`), e.g.: `docker build --build-arg "APP_VERSION=v1.2.3@GITHASH" .`
 ARG APP_VERSION="undefined@docker"
--- a/README.md
+++ b/README.md
@ -1,36 +1,40 @@
 <p align="center">
-  <img src="https://hsto.org/webt/rm/9y/ww/rm9ywwx3gjv9agwkcmllhsuyo7k.png" width="94" alt="" />
+  <a href="https://github.com/tarampampam/error-pages#readme"><img src="https://socialify.git.ci/tarampampam/error-pages/image?description=1&font=Raleway&forks=1&issues=1&logo=https%3A%2F%2Fhsto.org%2Fwebt%2Frm%2F9y%2Fww%2Frm9ywwx3gjv9agwkcmllhsuyo7k.png&owner=1&pulls=1&pattern=Solid&stargazers=1&theme=Dark" alt="banner" width="100%" /></a>
 </p>

-# HTTP's error pages
+<p align="center">
+  <a href="#"><img src="https://img.shields.io/github/go-mod/go-version/tarampampam/error-pages?longCache=true&label=&logo=go&logoColor=white&style=flat-square" alt="" /></a>
+  <a href="https://codecov.io/gh/tarampampam/error-pages"><img src="https://img.shields.io/codecov/c/github/tarampampam/error-pages/master.svg?maxAge=30&label=&logo=codecov&logoColor=white&style=flat-square" alt="" /></a>
+  <a href="https://github.com/tarampampam/error-pages/actions"><img src="https://img.shields.io/github/workflow/status/tarampampam/error-pages/tests?maxAge=30&label=tests&logo=github&style=flat-square" alt="" /></a>
+  <a href="https://github.com/tarampampam/error-pages/actions"><img src="https://img.shields.io/github/workflow/status/tarampampam/error-pages/release?maxAge=30&label=release&logo=github&style=flat-square" alt="" /></a>
+  <a href="https://hub.docker.com/r/tarampampam/error-pages"><img src="https://img.shields.io/docker/pulls/tarampampam/error-pages.svg?maxAge=30&label=pulls&logo=docker&logoColor=white&style=flat-square" alt="" /></a>
+  <a href="https://hub.docker.com/r/tarampampam/error-pages"><img src="https://img.shields.io/docker/image-size/tarampampam/error-pages/latest?maxAge=30&label=size&logo=docker&logoColor=white&style=flat-square" alt="" /></a>
+  <a href="https://github.com/tarampampam/error-pages/blob/master/LICENSE"><img src="https://img.shields.io/github/license/tarampampam/error-pages.svg?maxAge=30&style=flat-square" alt="" /></a>
+</p>

-[![Release version][badge-release]][releases]
-![Project language][badge-lang]
-[![Build Status][badge-ci-build]][actions-page]
-[![Release Status][badge-ci-release]][actions-page]
-[![Coverage][badge-coverage]][coverage]
-[![Image size][badge-image-size]][docker-hub]
-[![License][badge-license]][license]
+<p align="center"><sup>22 feb. 2022 - ⚡ Our Docker image was downloaded <strong>one MILLION times</strong> from the docker hub! ⚡</sup></p>

 One day you may want to replace the standard error pages of your HTTP server with something more original and pretty. That's what this repository was created for :) It contains:

- Simple error pages generator, written on Go
+- Simple error pages generator, written in Go
 - Single-page error page templates with different designs (located in the [templates](https://github.com/tarampampam/error-pages/tree/master/templates) directory)
 - Fast and lightweight HTTP server
 - Already generated error pages (sources can be [found here][preview-sources], the **demonstration** is always accessible [here][preview-demo])

 ## 🔥 Features list

- HTTP server written on Go, with the extremely fast [FastHTTP][fasthttp] under the hood
-  - Respects the `Content-Type` HTTP header (and `X-Format`) value and responds with the corresponding format (supported formats is `json` and `xml`)
+- HTTP server written in Go, with the extremely fast [FastHTTP][fasthttp] under the hood
+  - Respects the `Content-Type` HTTP header (and `X-Format`) value and responds with the corresponding format (supported formats are `json` and `xml`)
  - Writes logs in `json` format
  - Contains healthcheck endpoint (`/healthz`)
  - Contains metrics endpoint (`/metrics`) in Prometheus format
- Lightweight docker image _(~3.7Mb compressed size)_, distroless and uses the unleveled user by default
+- Lightweight docker image _(~4.6Mb compressed size)_, distroless and uses the unleveled user by default
 - [Go-template](https://pkg.go.dev/text/template) tags are allowed in the templates
 - Ready for integration with [Traefik][traefik] ([error pages customization](https://doc.traefik.io/traefik/middlewares/http/errorpages/)) and [Ingress-nginx][ingress-nginx]
+- Error pages can be [embedded into your own `nginx`][wiki-usage-with-nginx] docker image
 - Fully configurable (take a look at the [configuration file](https://github.com/tarampampam/error-pages/blob/master/error-pages.yml) and [project Wiki][wiki])
 - Distributed using docker image and compiled binary files
+- Localized (🇺🇸, 🇺🇦, 🇷🇺) HTML error pages (translation process [described here](https://github.com/tarampampam/error-pages/tree/master/l10n) - other translations are welcome!)

 ## 🧩 Install

@ -45,6 +49,11 @@ Download the latest binary file for your os/arch from the [releases page][releas

 > Using the `latest` tag for the docker image is highly discouraged because of possible backward-incompatible changes during **major** upgrades. Please, use tags in `X.Y.Z` format

+💣 **Or** you can download **already rendered** error pages pack as a [zip][pages-pack-zip] or [tar.gz][pages-pack-tar-gz] archive.
+
+[pages-pack-zip]:https://github.com/tarampampam/error-pages/zipball/gh-pages/
+[pages-pack-tar-gz]:https://github.com/tarampampam/error-pages/tarball/gh-pages/
+
 ## 🛠 Usage

 Please, take a look at [our Wiki][wiki] for the common usage stories:
@ -53,7 +62,7 @@ Please, take a look at [our Wiki][wiki] for the common usage stories:
 - [Pages generator][wiki-generator] (build your own error page set)
 - [Static error pages][wiki-static-error-pages] (extract generated static error pages from the docker image)
 - [Usage with nginx][wiki-usage-with-nginx] (include our error pages into an image with nginx)
- [Usage with Traekik and local Docker Compose][wiki-traefik-docker-compose] (it's a good starting point for the tests)
+- [Usage with Traefik and local Docker Compose][wiki-traefik-docker-compose] (it's a good starting point for the tests)
 - [Usage with Traefik and Docker Swarm][wiki-traefik-swarm]
 - [Kubernetes & ingress nginx][wiki-k8s-ingress-nginx]

@ -80,25 +89,26 @@ $ ulimit -aH | grep file
 -n: file descriptors                1048576
 -x: file locks                      unlimited

-$ wrk --version | head -n 1
-wrk 4.2.0 [epoll] Copyright (C) 2012 Will Glozer
+$ docker run --rm -p "8080:8080/tcp" -e "SHOW_DETAILS=true" error-pages:local # in separate terminal

-$ wrk -t12 -c400 -d30s http://127.0.0.1:8080/500.html
-Running 30s test @ http://127.0.0.1:8080/500.html
+$ wrk --timeout 1s -t12 -c400 -d30s -s ./test/wrk/request.lua http://127.0.0.1:8080/
+Running 30s test @ http://127.0.0.1:8080/
  12 threads and 400 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
-    Latency    50.06ms   61.15ms 655.79ms   85.54%
-    Req/Sec     1.07k   363.14     2.40k    69.24%
-  383014 requests in 30.08s, 2.14GB read
-Requests/sec:  12731.07
-Transfer/sec:     72.79MB
+    Latency    10.84ms    7.89ms 135.91ms   79.36%
+    Req/Sec     3.23k   785.11     6.30k    70.04%
+  1160567 requests in 30.10s, 4.12GB read
+Requests/sec:  38552.04
+Transfer/sec:    140.23MB
 ```

-FS & memory usage stats during the test:
+<details>
+  <summary>FS & memory usage stats during the test</summary>

-<p align="center">
-  <img src="https://hsto.org/webt/dy/2e/_8/dy2e_8xkefxre7z5w7xcorjldmm.png" alt="" />
-</p>
+  <p align="center">
+    <img src="https://hsto.org/webt/ts/w-/lz/tsw-lznvru0ngjneiimkwq7ysyc.png" alt="" />
+  </p>
+</details>

 ## 🪂 Templates

@ -111,12 +121,15 @@ FS & memory usage stats during the test:
 |      `noise`      |                [![noise][noise-screen]][noise-link]                |
 | `hacker-terminal` | [![hacker-terminal][hacker-terminal-screen]][hacker-terminal-link] |
 |      `cats`       |                 [![cats][cats-screen]][cats-link]                  |
+|  `lost-in-space`  |    [![lost-in-space][lost-in-space-screen]][lost-in-space-link]    |
+|    `app-down`     |           [![app-down][app-down-screen]][app-down-link]            |
+|   `connection`    |        [![connection][connection-screen]][connection-link]         |

 > Note: `noise` template highly uses the CPU, be careful

 [ghost-screen]:https://hsto.org/webt/oj/cl/4k/ojcl4ko_cvusy5xuki6efffzsyo.gif
 [ghost-link]:https://tarampampam.github.io/error-pages/ghost/404.html
-[l7-light-screen]:https://hsto.org/webt/xc/iq/vt/xciqvty-aoj-rchfarsjhutpjny.png
+[l7-light-screen]:https://hsto.org/webt/hx/ca/mm/hxcammfm7qjmogtvsjxcidgf7c8.png
 [l7-light-link]:https://tarampampam.github.io/error-pages/l7-light/404.html
 [l7-dark-screen]:https://hsto.org/webt/s1/ih/yr/s1ihyrqs_y-sgraoimfhk6ypney.png
 [l7-dark-link]:https://tarampampam.github.io/error-pages/l7-dark/404.html
@ -128,6 +141,12 @@ FS & memory usage stats during the test:
 [hacker-terminal-link]:https://tarampampam.github.io/error-pages/hacker-terminal/404.html
 [cats-screen]:https://hsto.org/webt/_g/y-/ke/_gy-keqinz-3867jbw36v37-iwe.jpeg
 [cats-link]:https://tarampampam.github.io/error-pages/cats/404.html
+[lost-in-space-screen]:https://hsto.org/webt/lf/ln/x8/lflnx8fuy4rofxju34ttskijdsu.gif
+[lost-in-space-link]:https://tarampampam.github.io/error-pages/lost-in-space/404.html
+[app-down-screen]:https://habrastorage.org/webt/j2/la/fj/j2lafjvu_xjflzrvhiixobxy_ca.png
+[app-down-link]:https://tarampampam.github.io/error-pages/app-down/404.html
+[connection-screen]:https://hsto.org/webt/x4/ah/jb/x4ahjboo4-arm3bxpaash_sflmw.png
+[connection-link]:https://tarampampam.github.io/error-pages/connection/404.html

 ## 🦾 Contributors

@ -155,20 +174,12 @@ If you find any bugs in the project, please [create an issue][new-issue] in the

 This is open-sourced software licensed under the [MIT License][license].

-[badge-ci-build]:https://img.shields.io/github/workflow/status/tarampampam/error-pages/tests?maxAge=30&label=tests&logo=github
-[badge-ci-release]:https://img.shields.io/github/workflow/status/tarampampam/error-pages/release?maxAge=30&label=release&logo=github
-[badge-coverage]:https://img.shields.io/codecov/c/github/tarampampam/error-pages/master.svg?maxAge=30
 [badge-release]:https://img.shields.io/github/release/tarampampam/error-pages.svg?maxAge=30
-[badge-image-size]:https://img.shields.io/docker/image-size/tarampampam/error-pages/latest?maxAge=30
-[badge-lang]:https://img.shields.io/github/go-mod/go-version/tarampampam/error-pages?longCache=true
-[badge-license]:https://img.shields.io/github/license/tarampampam/error-pages.svg?longCache=true
 [badge-release-date]:https://img.shields.io/github/release-date/tarampampam/error-pages.svg?maxAge=180
 [badge-commits]:https://img.shields.io/github/commits-since/tarampampam/error-pages/latest.svg?maxAge=45
 [badge-issues]:https://img.shields.io/github/issues/tarampampam/error-pages.svg?maxAge=45
 [badge-prs]:https://img.shields.io/github/issues-pr/tarampampam/error-pages.svg?maxAge=45

-[coverage]:https://codecov.io/gh/tarampampam/error-pages
-[actions-page]:https://github.com/tarampampam/error-pages/actions
 [docker-hub]:https://hub.docker.com/r/tarampampam/error-pages
 [docker-hub-tags]:https://hub.docker.com/r/tarampampam/error-pages/tags
 [license]:https://github.com/tarampampam/error-pages/blob/master/LICENSE
--- a/docker-compose.yml
+++ b/docker-compose.yml
@ -8,7 +8,7 @@ volumes:

 services:
  app: &app-service
-    image: golang:1.17.5-buster # Image page: <https://hub.docker.com/_/golang>
+    image: golang:1.18.0-buster # Image page: <https://hub.docker.com/_/golang>
    working_dir: /src
    environment:
      HOME: /tmp
@ -31,6 +31,7 @@ services:
      - --verbose
      - --port=8080
      - --show-details
+      - --proxy-headers=X-Foo,Bar,Baz_blah
    healthcheck:
      test: ['CMD', 'wget', '--spider', '-q', 'http://127.0.0.1:8080/healthz']
      interval: 5s
--- a/error-pages.yml
+++ b/error-pages.yml
@ -11,6 +11,9 @@ templates:
  - path: ./templates/noise.html
  - path: ./templates/hacker-terminal.html
  - path: ./templates/cats.html
+  - path: ./templates/lost-in-space.html
+  - path: ./templates/app-down.html
+  - path: ./templates/connection.html

 formats:
  json:
@ -21,7 +24,9 @@ formats:
        "message": {{ message | json }},
        "description": {{ description | json }}{{ if show_details }},
        "details": {
+          "host": {{ host | json }},
          "original_uri": {{ original_uri | json }},
+          "forwarded_for": {{ forwarded_for | json }},
          "namespace": {{ namespace | json }},
          "ingress_name": {{ ingress_name | json }},
          "service_name": {{ service_name | json }},
@ -39,7 +44,9 @@ formats:
        <message>{{ message }}</message>
        <description>{{ description }}</description>{{ if show_details }}
        <details>
+          <host>{{ host }}</host>
          <originalURI>{{ original_uri }}</originalURI>
+          <forwardedFor>{{ forwarded_for }}</forwardedFor>
          <namespace>{{ namespace }}</namespace>
          <ingressName>{{ ingress_name }}</ingressName>
          <serviceName>{{ service_name }}</serviceName>
--- a/go.mod
+++ b/go.mod
@ -1,41 +1,41 @@
 module github.com/tarampampam/error-pages

-go 1.17
+go 1.18

 require (
 	github.com/a8m/envsubst v1.3.0
-	github.com/fasthttp/router v1.4.4
+	github.com/fasthttp/router v1.4.6
 	github.com/fatih/color v1.13.0
 	github.com/kami-zh/go-capturer v0.0.0-20171211120116-e492ea43421d
 	github.com/pkg/errors v0.9.1
-	github.com/prometheus/client_golang v1.12.0
+	github.com/prometheus/client_golang v1.12.1
 	github.com/prometheus/client_model v0.2.0
-	github.com/spf13/cobra v1.3.0
+	github.com/spf13/cobra v1.4.0
 	github.com/spf13/pflag v1.0.5
-	github.com/stretchr/testify v1.7.0
-	github.com/valyala/fasthttp v1.31.0
-	go.uber.org/zap v1.19.1
+	github.com/stretchr/testify v1.7.1
+	github.com/valyala/fasthttp v1.34.0
+	go.uber.org/zap v1.21.0
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
 )

 require (
-	github.com/andybalholm/brotli v1.0.3 // indirect
+	github.com/andybalholm/brotli v1.0.4 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
-	github.com/klauspost/compress v1.13.6 // indirect
+	github.com/klauspost/compress v1.15.0 // indirect
 	github.com/mattn/go-colorable v0.1.12 // indirect
 	github.com/mattn/go-isatty v0.0.14 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/common v0.32.1 // indirect
 	github.com/prometheus/procfs v0.7.3 // indirect
-	github.com/savsgio/gotils v0.0.0-20210921075833-21a6215cb0e4 // indirect
+	github.com/savsgio/gotils v0.0.0-20211223103454-d0aaa54c5899 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
 	go.uber.org/multierr v1.6.0 // indirect
-	golang.org/x/sys v0.0.0-20220114195835-da31bd327af9 // indirect
+	golang.org/x/sys v0.0.0-20220227234510-4e6760a101f9 // indirect
 	google.golang.org/protobuf v1.27.1 // indirect
 )
--- a/go.sum
+++ b/go.sum
@ -13,20 +13,6 @@ cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKV
 cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
 cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
 cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
-cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
-cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
-cloud.google.com/go v0.78.0/go.mod h1:QjdrLG0uq+YwhjoVOLsS1t7TW8fs36kLs4XO5R5ECHg=
-cloud.google.com/go v0.79.0/go.mod h1:3bzgcEeQlzbuEAYu4mrWhKqWjmpprinYgKJLgKHnbb8=
-cloud.google.com/go v0.81.0/go.mod h1:mk/AM35KwGk/Nm2YSeZbxXdrNK3KZOYHmLkOqC2V6E0=
-cloud.google.com/go v0.83.0/go.mod h1:Z7MJUsANfY0pYPdw0lbnivPx4/vhy/e2FEkSkF7vAVY=
-cloud.google.com/go v0.84.0/go.mod h1:RazrYuxIK6Kb7YrzzhPoLmCVzl7Sup4NrbKPg8KHSUM=
-cloud.google.com/go v0.87.0/go.mod h1:TpDYlFy7vuLzZMMZ+B6iRiELaY7z/gJPaqbMx6mlWcY=
-cloud.google.com/go v0.90.0/go.mod h1:kRX0mNRHe0e2rC6oNakvwQqzyDmg57xJ+SZU1eT2aDQ=
-cloud.google.com/go v0.93.3/go.mod h1:8utlLll2EF5XMAV15woO4lSbWQlk8rer9aLOfLh7+YI=
-cloud.google.com/go v0.94.1/go.mod h1:qAlAugsXlC+JWO+Bke5vCtc9ONxjQT3drlTTnAplMW4=
-cloud.google.com/go v0.97.0/go.mod h1:GF7l59pYBVlXQIBLx3a761cZ41F9bBH3JUlihCt2Udc=
-cloud.google.com/go v0.98.0/go.mod h1:ua6Ush4NALrHk5QXDWnjvZHN93OuF0HfuEPq9I1X0cM=
-cloud.google.com/go v0.99.0/go.mod h1:w0Xx2nLzqWJPuozYQX+hFfCSI8WioryfRDzkoI/Y2ZA=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
 cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
@ -35,7 +21,6 @@ cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4g
 cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
-cloud.google.com/go/firestore v1.6.1/go.mod h1:asNXNOzBdyVQmEU+ggO8UPodTkEVFW5Qx+rwHnAz+EY=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
 cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
 cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
@ -48,8 +33,6 @@ cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
-github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
-github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/a8m/envsubst v1.3.0 h1:GmXKmVssap0YtlU3E230W98RWtWCyIZzjtf1apWWyAg=
 github.com/a8m/envsubst v1.3.0/go.mod h1:MVUTQNGQ3tsjOOtKCNd+fl8RzhsXcDvvAEzkhGtlsbY=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
@ -57,47 +40,23 @@ github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuy
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
-github.com/andybalholm/brotli v1.0.2/go.mod h1:loMXtMfwqflxFJPmdbJO0a3KNoPuLBgiu3qAvBg8x/Y=
-github.com/andybalholm/brotli v1.0.3 h1:fpcw+r1N1h0Poc1F/pHbW40cUm/lMEQslZtCkBQ0UnM=
-github.com/andybalholm/brotli v1.0.3/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
-github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
-github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
-github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
-github.com/armon/go-metrics v0.3.10/go.mod h1:4O98XIr/9W0sxpJ8UaYkvjk10Iff7SnFrb4QAOwNTFc=
-github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
-github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/andybalholm/brotli v1.0.4 h1:V7DdXeJtZscaqfNuAdSRuRFzuiKlHSC/Zh3zl9qY3JY=
+github.com/andybalholm/brotli v1.0.4/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
 github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
 github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/census-instrumentation/opencensus-proto v0.3.0/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
-github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
 github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
-github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible/go.mod h1:nmEj6Dob7S7YxXgwXpfOuvO54S+tGdZdw9fuRZt25Ag=
-github.com/circonus-labs/circonusllhist v0.1.3/go.mod h1:kMXHVDlOchFAehlya5ePtbp5jckzBHf4XRpQvBOLI+I=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
-github.com/cncf/udpa/go v0.0.0-20200629203442-efcf912fb354/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
-github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
-github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI=
-github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-github.com/cncf/xds/go v0.0.0-20210805033703-aa0b78936158/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-github.com/cncf/xds/go v0.0.0-20211130200136-a8f946100490/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
-github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/cpuguy83/go-md2man/v2 v2.0.1/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@ -105,22 +64,11 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
-github.com/envoyproxy/go-control-plane v0.9.7/go.mod h1:cwu0lG7PUMfa9snN8LXBig5ynNVH9qI8YYLbd1fK2po=
-github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
-github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
-github.com/envoyproxy/go-control-plane v0.9.9-0.20210512163311-63b5d3c536b0/go.mod h1:hliV/p42l8fGbc6Y9bQ70uLwIvmJyVE5k4iMKlh8wCQ=
-github.com/envoyproxy/go-control-plane v0.9.10-0.20210907150352-cf90f659a021/go.mod h1:AFq3mo9L8Lqqiid3OhADV3RfLJnjiw63cSpi+fDTRC0=
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@ -131,14 +79,11 @@ github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9
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@ -146,8 +91,6 @@ github.com/golang/mock v1.4.0/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt
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@ -163,10 +106,8 @@ github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QD
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@ -176,17 +117,12 @@ github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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@ -194,59 +130,17 @@ github.com/google/pprof v0.0.0-20200212024743-f11f1df84d12/go.mod h1:ZgVRPoUq/hf
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@ -436,8 +277,6 @@ golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHl
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@ -446,13 +285,9 @@ golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzB
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@ -465,7 +300,6 @@ golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLL
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 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -518,16 +333,12 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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-golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@ -536,18 +347,13 @@ golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@ -561,46 +367,27 @@ golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@ -619,7 +406,6 @@ golang.org/x/tools v0.0.0-20190606124116-d0a3d012864b/go.mod h1:/rFqwRUd4F7ZHNgw
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@ -644,21 +430,9 @@ golang.org/x/tools v0.0.0-20200501065659-ab2804fb9c9d/go.mod h1:EkVYQZoAsY45+roY
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-golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
-golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
-golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
-golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
-golang.org/x/tools v0.1.3/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
-golang.org/x/tools v0.1.4/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -681,29 +455,12 @@ google.golang.org/api v0.24.0/go.mod h1:lIXQywCXRcnZPGlsd8NbLnOjtAoL6em04bJ9+z0M
 google.golang.org/api v0.28.0/go.mod h1:lIXQywCXRcnZPGlsd8NbLnOjtAoL6em04bJ9+z0MncE=
 google.golang.org/api v0.29.0/go.mod h1:Lcubydp8VUV7KeIHD9z2Bys/sm/vGKnG1UHuDBSrHWM=
 google.golang.org/api v0.30.0/go.mod h1:QGmEvQ87FHZNiUVJkT14jQNYJ4ZJjdRF23ZXz5138Fc=
-google.golang.org/api v0.35.0/go.mod h1:/XrVsuzM0rZmrsbjJutiuftIzeuTQcEeaYcSk/mQ1dg=
-google.golang.org/api v0.36.0/go.mod h1:+z5ficQTmoYpPn8LCUNVpK5I7hwkpjbcgqA7I34qYtE=
-google.golang.org/api v0.40.0/go.mod h1:fYKFpnQN0DsDSKRVRcQSDQNtqWPfM9i+zNPxepjRCQ8=
-google.golang.org/api v0.41.0/go.mod h1:RkxM5lITDfTzmyKFPt+wGrCJbVfniCr2ool8kTBzRTU=
-google.golang.org/api v0.43.0/go.mod h1:nQsDGjRXMo4lvh5hP0TKqF244gqhGcr/YSIykhUk/94=
-google.golang.org/api v0.47.0/go.mod h1:Wbvgpq1HddcWVtzsVLyfLp8lDg6AA241LmgIL59tHXo=
-google.golang.org/api v0.48.0/go.mod h1:71Pr1vy+TAZRPkPs/xlCf5SsU8WjuAWv1Pfjbtukyy4=
-google.golang.org/api v0.50.0/go.mod h1:4bNT5pAuq5ji4SRZm+5QIkjny9JAyVD/3gaSihNefaw=
-google.golang.org/api v0.51.0/go.mod h1:t4HdrdoNgyN5cbEfm7Lum0lcLDLiise1F8qDKX00sOU=
-google.golang.org/api v0.54.0/go.mod h1:7C4bFFOvVDGXjfDTAsgGwDgAxRDeQ4X8NvUedIt6z3k=
-google.golang.org/api v0.55.0/go.mod h1:38yMfeP1kfjsl8isn0tliTjIb1rJXcQi4UXlbqivdVE=
-google.golang.org/api v0.56.0/go.mod h1:38yMfeP1kfjsl8isn0tliTjIb1rJXcQi4UXlbqivdVE=
-google.golang.org/api v0.57.0/go.mod h1:dVPlbZyBo2/OjBpmvNdpn2GRm6rPy75jyU7bmhdrMgI=
-google.golang.org/api v0.59.0/go.mod h1:sT2boj7M9YJxZzgeZqXogmhfmRWDtPzT31xkieUbuZU=
-google.golang.org/api v0.61.0/go.mod h1:xQRti5UdCmoCEqFxcz93fTl338AVqDgyaDRuOZ3hg9I=
-google.golang.org/api v0.62.0/go.mod h1:dKmwPCydfsad4qCH08MSdgWjfHOyfpd4VtDGgRFdavw=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
 google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/appengine v1.6.6/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
-google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
@ -727,46 +484,12 @@ google.golang.org/genproto v0.0.0-20200312145019-da6875a35672/go.mod h1:55QSHmfG
 google.golang.org/genproto v0.0.0-20200331122359-1ee6d9798940/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200430143042-b979b6f78d84/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200511104702-f5ebc3bea380/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
-google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200515170657-fc4c6c6a6587/go.mod h1:YsZOwe1myG/8QRHRsmBRE1LrgQY60beZKjly0O1fX9U=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
 google.golang.org/genproto v0.0.0-20200618031413-b414f8b61790/go.mod h1:jDfRM7FcilCzHH/e9qn6dsT145K34l5v+OpcnNgKAAA=
 google.golang.org/genproto v0.0.0-20200729003335-053ba62fc06f/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20200804131852-c06518451d9c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20200904004341-0bd0a958aa1d/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20201109203340-2640f1f9cdfb/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20201201144952-b05cb90ed32e/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20201210142538-e3217bee35cc/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20201214200347-8c77b98c765d/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20210222152913-aa3ee6e6a81c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20210303154014-9728d6b83eeb/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20210310155132-4ce2db91004e/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20210319143718-93e7006c17a6/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20210402141018-6c239bbf2bb1/go.mod h1:9lPAdzaEmUacj36I+k7YKbEc5CXzPIeORRgDAUOu28A=
-google.golang.org/genproto v0.0.0-20210513213006-bf773b8c8384/go.mod h1:P3QM42oQyzQSnHPnZ/vqoCdDmzH28fzWByN9asMeM8A=
-google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0=
-google.golang.org/genproto v0.0.0-20210604141403-392c879c8b08/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0=
-google.golang.org/genproto v0.0.0-20210608205507-b6d2f5bf0d7d/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0=
-google.golang.org/genproto v0.0.0-20210624195500-8bfb893ecb84/go.mod h1:SzzZ/N+nwJDaO1kznhnlzqS8ocJICar6hYhVyhi++24=
-google.golang.org/genproto v0.0.0-20210713002101-d411969a0d9a/go.mod h1:AxrInvYm1dci+enl5hChSFPOmmUF1+uAa/UsgNRWd7k=
-google.golang.org/genproto v0.0.0-20210716133855-ce7ef5c701ea/go.mod h1:AxrInvYm1dci+enl5hChSFPOmmUF1+uAa/UsgNRWd7k=
-google.golang.org/genproto v0.0.0-20210728212813-7823e685a01f/go.mod h1:ob2IJxKrgPT52GcgX759i1sleT07tiKowYBGbczaW48=
-google.golang.org/genproto v0.0.0-20210805201207-89edb61ffb67/go.mod h1:ob2IJxKrgPT52GcgX759i1sleT07tiKowYBGbczaW48=
-google.golang.org/genproto v0.0.0-20210813162853-db860fec028c/go.mod h1:cFeNkxwySK631ADgubI+/XFU/xp8FD5KIVV4rj8UC5w=
-google.golang.org/genproto v0.0.0-20210821163610-241b8fcbd6c8/go.mod h1:eFjDcFEctNawg4eG61bRv87N7iHBWyVhJu7u1kqDUXY=
-google.golang.org/genproto v0.0.0-20210828152312-66f60bf46e71/go.mod h1:eFjDcFEctNawg4eG61bRv87N7iHBWyVhJu7u1kqDUXY=
-google.golang.org/genproto v0.0.0-20210831024726-fe130286e0e2/go.mod h1:eFjDcFEctNawg4eG61bRv87N7iHBWyVhJu7u1kqDUXY=
-google.golang.org/genproto v0.0.0-20210903162649-d08c68adba83/go.mod h1:eFjDcFEctNawg4eG61bRv87N7iHBWyVhJu7u1kqDUXY=
-google.golang.org/genproto v0.0.0-20210909211513-a8c4777a87af/go.mod h1:eFjDcFEctNawg4eG61bRv87N7iHBWyVhJu7u1kqDUXY=
-google.golang.org/genproto v0.0.0-20210924002016-3dee208752a0/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
-google.golang.org/genproto v0.0.0-20211008145708-270636b82663/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
-google.golang.org/genproto v0.0.0-20211028162531-8db9c33dc351/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
-google.golang.org/genproto v0.0.0-20211118181313-81c1377c94b1/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
-google.golang.org/genproto v0.0.0-20211129164237-f09f9a12af12/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
-google.golang.org/genproto v0.0.0-20211203200212-54befc351ae9/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
-google.golang.org/genproto v0.0.0-20211206160659-862468c7d6e0/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
-google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
@ -779,22 +502,6 @@ google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKa
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
 google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
-google.golang.org/grpc v1.31.1/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
-google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
-google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
-google.golang.org/grpc v1.34.0/go.mod h1:WotjhfgOW/POjDeRt8vscBtXq+2VjORFy659qA51WJ8=
-google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.36.1/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/grpc v1.37.1/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/grpc v1.39.0/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnDzfrE=
-google.golang.org/grpc v1.39.1/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnDzfrE=
-google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
-google.golang.org/grpc v1.40.1/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
-google.golang.org/grpc v1.42.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
-google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@ -815,10 +522,8 @@ gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
-gopkg.in/ini.v1 v1.66.2/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
--- a/internal/cli/build/command.go
+++ b/internal/cli/build/command.go
@ -71,7 +71,8 @@ func run(log *zap.Logger, cfg *config.Config, outDirectoryPath string, generateI
 		return errors.Wrap(err, "cannot prepare output directory")
 	}

-	history := newBuildingHistory()
+	history, renderer := newBuildingHistory(), tpl.NewTemplateRenderer()
+	defer func() { _ = renderer.Close() }()

 	for _, template := range cfg.Templates {
 		log.Debug("template processing", zap.String("name", template.Name()))
@ -86,7 +87,7 @@ func run(log *zap.Logger, cfg *config.Config, outDirectoryPath string, generateI
 				filePath = path.Join(outDirectoryPath, template.Name(), fileName)
 			)

-			content, renderingErr := tpl.Render(template.Content(), tpl.Properties{
+			content, renderingErr := renderer.Render(template.Content(), tpl.Properties{
 				Code:               page.Code(),
 				Message:            page.Message(),
 				Description:        page.Description(),
--- a/internal/cli/build/index.tpl.html
+++ b/internal/cli/build/index.tpl.html
@ -1,3 +1,4 @@
+<!DOCTYPE html>
 <html lang="en">
 <head>
    <meta charset="utf-8" />
@ -6,6 +7,11 @@
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.1.3/css/bootstrap.min.css"
          integrity="sha512-GQGU0fMMi238uA+a/bdWJfpUGKUkBdgfFdgBm72SUQ6BeyWjoY/ton0tEjH+OSH9iP4Dfh+7HM0I9f5eR0L/4w=="
          crossorigin="anonymous" referrerpolicy="no-referrer" />
+    <style>
+        @media (prefers-color-scheme:dark){
+            :root {--bs-light:#212529;--bs-light-rgb:33,37,41;--bs-body-color:#eee}a{color:#91b4e8}a:hover{color:#a2bfec}
+        }
+    </style>
 </head>
 <body class="bg-light">
 <div class="container">
--- a/internal/cli/serve/command.go
+++ b/internal/cli/serve/command.go
@ -69,7 +69,7 @@ func run(parentCtx context.Context, log *zap.Logger, f flags, cfg *config.Config

 	var (
 		templateNames = cfg.TemplateNames()
-		picker        *pick.StringsSlice
+		picker        interface{ Pick() string }
 	)

 	switch f.template.name {
@ -83,6 +83,16 @@ func run(parentCtx context.Context, log *zap.Logger, f flags, cfg *config.Config

 		picker = pick.NewStringsSlice(templateNames, pick.RandomEveryTime)

+	case useRandomTemplateDaily:
+		log.Info("A random template will be used and changed once a day")
+
+		picker = pick.NewStringsSliceWithInterval(templateNames, pick.RandomEveryTime, time.Hour*24) //nolint:gomnd
+
+	case useRandomTemplateHourly:
+		log.Info("A random template will be used and changed hourly")
+
+		picker = pick.NewStringsSliceWithInterval(templateNames, pick.RandomEveryTime, time.Hour)
+
 	case "":
 		log.Info("The first template (ordered by name) will be used")

@ -97,11 +107,20 @@ func run(parentCtx context.Context, log *zap.Logger, f flags, cfg *config.Config
 		}
 	}

+	var proxyHTTPHeaders = f.HeadersToProxy()
+
 	// create HTTP server
 	server := appHttp.NewServer(log)

 	// register server routes, middlewares, etc.
-	if err := server.Register(cfg, picker, f.defaultErrorPage, f.defaultHTTPCode, f.showDetails); err != nil {
+	if err := server.Register(
+		cfg,
+		picker,
+		f.defaultErrorPage,
+		f.defaultHTTPCode,
+		f.showDetails,
+		proxyHTTPHeaders,
+	); err != nil {
 		return err
 	}

@ -116,6 +135,7 @@ func run(parentCtx context.Context, log *zap.Logger, f flags, cfg *config.Config
 			zap.Uint16("port", f.listen.port),
 			zap.String("default error page", f.defaultErrorPage),
 			zap.Uint16("default HTTP response code", f.defaultHTTPCode),
+			zap.Strings("proxy headers", proxyHTTPHeaders),
 			zap.Bool("show request details", f.showDetails),
 		)

@ -132,6 +152,12 @@ func run(parentCtx context.Context, log *zap.Logger, f flags, cfg *config.Config
 	case <-ctx.Done(): // ..or context cancellation
 		log.Info("Gracefully server stopping", zap.Duration("uptime", time.Since(startedAt)))

+		if p, ok := picker.(interface{ Close() error }); ok {
+			if err := p.Close(); err != nil {
+				return err
+			}
+		}
+
 		// stop the server using created context above
 		if err := server.Stop(); err != nil {
 			return err
--- a/internal/cli/serve/flags.go
+++ b/internal/cli/serve/flags.go
@ -3,6 +3,7 @@ package serve
 import (
 	"fmt"
 	"net"
+	"sort"
 	"strconv"
 	"strings"

@ -21,6 +22,45 @@ type flags struct {
 	defaultErrorPage string
 	defaultHTTPCode  uint16
 	showDetails      bool
+	proxyHTTPHeaders string // comma-separated
+}
+
+// HeadersToProxy converts a comma-separated string with headers list into strings slice (with a sorting and without
+// duplicates).
+func (f *flags) HeadersToProxy() []string {
+	var raw = strings.Split(f.proxyHTTPHeaders, ",")
+
+	if len(raw) == 0 {
+		return []string{}
+	} else if len(raw) == 1 {
+		if h := strings.TrimSpace(raw[0]); h != "" {
+			return []string{h}
+		} else {
+			return []string{}
+		}
+	}
+
+	var m = make(map[string]struct{}, len(raw))
+
+	// make unique and ignore empty strings
+	for _, h := range raw {
+		if h = strings.TrimSpace(h); h != "" {
+			if _, ok := m[h]; !ok {
+				m[h] = struct{}{}
+			}
+		}
+	}
+
+	// convert map into slice
+	var headers = make([]string, 0, len(m))
+	for h := range m {
+		headers = append(headers, h)
+	}
+
+	// make sort
+	sort.Strings(headers)
+
+	return headers
 }

 const (
@ -30,11 +70,14 @@ const (
 	defaultErrorPageFlagName = "default-error-page"
 	defaultHTTPCodeFlagName  = "default-http-code"
 	showDetailsFlagName      = "show-details"
+	proxyHTTPHeadersFlagName = "proxy-headers"
 )

 const (
 	useRandomTemplate              = "random"
 	useRandomTemplateOnEachRequest = "i-said-random"
+	useRandomTemplateDaily         = "random-daily"
+	useRandomTemplateHourly        = "random-hourly"
 )

 func (f *flags) init(flagSet *pflag.FlagSet) {
@ -55,8 +98,13 @@ func (f *flags) init(flagSet *pflag.FlagSet) {
 		templateNameFlagName, "t",
 		"",
 		fmt.Sprintf(
-			"template name (set \"%s\" to use a randomized or \"%s\" to use a randomized template on each request) [$%s]", //nolint:lll
-			useRandomTemplate, useRandomTemplateOnEachRequest, env.TemplateName,
+			"template name (set \"%s\" to use a randomized or \"%s\" to use a randomized template on each request "+
+				"or \"%s/%s\" daily/hourly randomized) [$%s]",
+			useRandomTemplate,
+			useRandomTemplateOnEachRequest,
+			useRandomTemplateDaily,
+			useRandomTemplateHourly,
+			env.TemplateName,
 		),
 	)
 	flagSet.StringVarP(
@ -77,6 +125,12 @@ func (f *flags) init(flagSet *pflag.FlagSet) {
 		false,
 		fmt.Sprintf("show request details in response [$%s]", env.ShowDetails),
 	)
+	flagSet.StringVarP(
+		&f.proxyHTTPHeaders,
+		proxyHTTPHeadersFlagName, "",
+		"",
+		fmt.Sprintf("proxy HTTP request headers list (comma-separated) [$%s]", env.ProxyHTTPHeaders),
+	)
 }

 func (f *flags) overrideUsingEnv(flagSet *pflag.FlagSet) (lastErr error) { //nolint:gocognit,gocyclo
@ -123,6 +177,11 @@ func (f *flags) overrideUsingEnv(flagSet *pflag.FlagSet) (lastErr error) { //nol
 						f.showDetails = b
 					}
 				}
+
+			case proxyHTTPHeadersFlagName:
+				if envVar, exists := env.ProxyHTTPHeaders.Lookup(); exists {
+					f.proxyHTTPHeaders = strings.TrimSpace(envVar)
+				}
 			}
 		}
 	})
@ -139,5 +198,9 @@ func (f *flags) validate() error {
 		return fmt.Errorf("wrong default HTTP response code [%d]", f.defaultHTTPCode)
 	}

+	if strings.ContainsRune(f.proxyHTTPHeaders, ' ') {
+		return fmt.Errorf("whitespaces in the HTTP headers for proxying [%s] are not allowed", f.proxyHTTPHeaders)
+	}
+
 	return nil
 }
--- a/internal/env/env.go
+++ b/internal/env/env.go
@ -13,6 +13,7 @@ const (
 	DefaultErrorPage envVariable = "DEFAULT_ERROR_PAGE" // default error page (code)
 	DefaultHTTPCode  envVariable = "DEFAULT_HTTP_CODE"  // default HTTP response code
 	ShowDetails      envVariable = "SHOW_DETAILS"       // show request details in response
+	ProxyHTTPHeaders envVariable = "PROXY_HTTP_HEADERS" // proxy HTTP request headers list (request -> response)
 )

 // String returns environment variable name in the string representation.
--- a/internal/env/env_test.go
+++ b/internal/env/env_test.go
@ -15,6 +15,7 @@ func TestConstants(t *testing.T) {
 	assert.Equal(t, "DEFAULT_ERROR_PAGE", string(DefaultErrorPage))
 	assert.Equal(t, "DEFAULT_HTTP_CODE", string(DefaultHTTPCode))
 	assert.Equal(t, "SHOW_DETAILS", string(ShowDetails))
+	assert.Equal(t, "PROXY_HTTP_HEADERS", string(ProxyHTTPHeaders))
 }

 func TestEnvVariable_Lookup(t *testing.T) {
@ -28,6 +29,7 @@ func TestEnvVariable_Lookup(t *testing.T) {
 		{giveEnv: DefaultErrorPage},
 		{giveEnv: DefaultHTTPCode},
 		{giveEnv: ShowDetails},
+		{giveEnv: ProxyHTTPHeaders},
 	}

 	for _, tt := range cases {
--- a/internal/http/common/middlewares.go
+++ b/internal/http/common/middlewares.go
@ -9,17 +9,32 @@ import (
 )

 func LogRequest(h fasthttp.RequestHandler, log *zap.Logger) fasthttp.RequestHandler {
+	const headersSeparator = ": "
+
 	return func(ctx *fasthttp.RequestCtx) {
-		var (
-			startedAt = time.Now()
-			ua        = string(ctx.UserAgent())
-		)
+		var ua = string(ctx.UserAgent())
+
+		if strings.Contains(strings.ToLower(ua), "healthcheck") { // skip healthcheck requests logging
+			h(ctx)
+
+			return
+		}
+
+		var reqHeaders = make([]string, 0, 24) //nolint:gomnd
+
+		ctx.Request.Header.VisitAll(func(key, value []byte) {
+			reqHeaders = append(reqHeaders, string(key)+headersSeparator+string(value))
+		})
+
+		var startedAt = time.Now()

 		h(ctx)

-		if strings.Contains(strings.ToLower(ua), "healthcheck") { // skip healthcheck requests logging
-			return
-		}
+		var respHeaders = make([]string, 0, 16) //nolint:gomnd
+
+		ctx.Response.Header.VisitAll(func(key, value []byte) {
+			respHeaders = append(respHeaders, string(key)+headersSeparator+string(value))
+		})

 		log.Info("HTTP request processed",
 			zap.String("useragent", ua),
@ -30,6 +45,8 @@ func LogRequest(h fasthttp.RequestHandler, log *zap.Logger) fasthttp.RequestHand
 			zap.String("content_type", string(ctx.Response.Header.ContentType())),
 			zap.Bool("connection_close", ctx.Response.ConnectionClose()),
 			zap.Duration("duration", time.Since(startedAt)),
+			zap.Strings("request_headers", reqHeaders),
+			zap.Strings("response_headers", respHeaders),
 		)
 	}
 }
--- a/internal/http/core/errorpage.go
+++ b/internal/http/core/errorpage.go
@ -13,13 +13,19 @@ type templatePicker interface {
 	Pick() string
 }

-func RespondWithErrorPage( //nolint:funlen
+type renderer interface {
+	Render(content []byte, props tpl.Properties) ([]byte, error)
+}
+
+func RespondWithErrorPage( //nolint:funlen,gocyclo
 	ctx *fasthttp.RequestCtx,
 	cfg *config.Config,
 	p templatePicker,
+	rdr renderer,
 	pageCode string,
 	httpCode int,
 	showRequestDetails bool,
+	proxyHeaders []string,
 ) {
 	ctx.Response.Header.Set("X-Robots-Tag", "noindex") // block Search indexing

@ -37,6 +43,8 @@ func RespondWithErrorPage( //nolint:funlen
 		props.ServiceName = string(ctx.Request.Header.Peek(ServiceName))
 		props.ServicePort = string(ctx.Request.Header.Peek(ServicePort))
 		props.RequestID = string(ctx.Request.Header.Peek(RequestID))
+		props.ForwardedFor = string(ctx.Request.Header.Peek(ForwardedFor))
+		props.Host = string(ctx.Request.Header.Peek(Host))
 	}

 	if page, exists := cfg.Pages[pageCode]; exists {
@ -57,12 +65,19 @@ func RespondWithErrorPage( //nolint:funlen
 		return
 	}

+	// proxy required HTTP headers from the request to the response
+	for _, headerToProxy := range proxyHeaders {
+		if reqHeader := ctx.Request.Header.Peek(headerToProxy); len(reqHeader) > 0 {
+			ctx.Response.Header.SetBytesV(headerToProxy, reqHeader)
+		}
+	}
+
 	switch {
 	case clientWant == JSONContentType && canJSON: // JSON
 		{
 			SetClientFormat(ctx, JSONContentType)

-			if content, err := tpl.Render(json.Content(), props); err == nil {
+			if content, err := rdr.Render(json.Content(), props); err == nil {
 				ctx.SetStatusCode(httpCode)
 				_, _ = ctx.Write(content)
 			} else {
@ -75,7 +90,7 @@ func RespondWithErrorPage( //nolint:funlen
 		{
 			SetClientFormat(ctx, XMLContentType)

-			if content, err := tpl.Render(xml.Content(), props); err == nil {
+			if content, err := rdr.Render(xml.Content(), props); err == nil {
 				ctx.SetStatusCode(httpCode)
 				_, _ = ctx.Write(content)
 			} else {
@ -91,7 +106,7 @@ func RespondWithErrorPage( //nolint:funlen
 			var templateName = p.Pick()

 			if template, exists := cfg.Template(templateName); exists {
-				if content, err := tpl.Render(template.Content(), props); err == nil {
+				if content, err := rdr.Render(template.Content(), props); err == nil {
 					ctx.SetStatusCode(httpCode)
 					_, _ = ctx.Write(content)
 				} else {
--- a/internal/http/core/headers.go
+++ b/internal/http/core/headers.go
@ -24,4 +24,10 @@ const (

 	// RequestID is a unique ID that identifies the request - same as for backend service
 	RequestID = "X-Request-ID"
+
+	// ForwardedFor identifies the user of this session
+	ForwardedFor = "X-Forwarded-For"
+
+	// Host identifies the hosts origin
+	Host = "Host"
 )
--- a/internal/http/handlers/errorpage/handler.go
+++ b/internal/http/handlers/errorpage/handler.go
@ -3,21 +3,34 @@ package errorpage
 import (
 	"github.com/tarampampam/error-pages/internal/config"
 	"github.com/tarampampam/error-pages/internal/http/core"
+	"github.com/tarampampam/error-pages/internal/tpl"
 	"github.com/valyala/fasthttp"
 )

-type templatePicker interface {
-	// Pick the template name for responding.
-	Pick() string
-}
+type (
+	templatePicker interface {
+		// Pick the template name for responding.
+		Pick() string
+	}
+
+	renderer interface {
+		Render(content []byte, props tpl.Properties) ([]byte, error)
+	}
+)

 // NewHandler creates handler for error pages serving.
-func NewHandler(cfg *config.Config, p templatePicker, showRequestDetails bool) fasthttp.RequestHandler {
+func NewHandler(
+	cfg *config.Config,
+	p templatePicker,
+	rdr renderer,
+	showRequestDetails bool,
+	proxyHTTPHeaders []string,
+) fasthttp.RequestHandler {
 	return func(ctx *fasthttp.RequestCtx) {
 		core.SetClientFormat(ctx, core.PlainTextContentType) // default content type

 		if code, ok := ctx.UserValue("code").(string); ok {
-			core.RespondWithErrorPage(ctx, cfg, p, code, fasthttp.StatusOK, showRequestDetails)
+			core.RespondWithErrorPage(ctx, cfg, p, rdr, code, fasthttp.StatusOK, showRequestDetails, proxyHTTPHeaders)
 		} else { // will never occur
 			ctx.SetStatusCode(fasthttp.StatusInternalServerError)
 			_, _ = ctx.WriteString("cannot extract requested code from the request")
--- a/internal/http/handlers/index/handler.go
+++ b/internal/http/handlers/index/handler.go
@ -5,6 +5,7 @@ import (

 	"github.com/tarampampam/error-pages/internal/config"
 	"github.com/tarampampam/error-pages/internal/http/core"
+	"github.com/tarampampam/error-pages/internal/tpl"
 	"github.com/valyala/fasthttp"
 )

@ -13,15 +14,21 @@ type (
 		// Pick the template name for responding.
 		Pick() string
 	}
+
+	renderer interface {
+		Render(content []byte, props tpl.Properties) ([]byte, error)
+	}
 )

 // NewHandler creates handler for the index page serving.
 func NewHandler(
 	cfg *config.Config,
 	p templatePicker,
+	rdr renderer,
 	defaultPageCode string,
 	defaultHTTPCode uint16,
 	showRequestDetails bool,
+	proxyHTTPHeaders []string,
 ) fasthttp.RequestHandler {
 	return func(ctx *fasthttp.RequestCtx) {
 		pageCode, httpCode := defaultPageCode, int(defaultHTTPCode)
@ -30,7 +37,7 @@ func NewHandler(
 			pageCode, httpCode = strconv.Itoa(returnCode), returnCode
 		}

-		core.RespondWithErrorPage(ctx, cfg, p, pageCode, httpCode, showRequestDetails)
+		core.RespondWithErrorPage(ctx, cfg, p, rdr, pageCode, httpCode, showRequestDetails, proxyHTTPHeaders)
 	}
 }

--- a/internal/http/server.go
+++ b/internal/http/server.go
@ -15,6 +15,7 @@ import (
 	notfoundHandler "github.com/tarampampam/error-pages/internal/http/handlers/notfound"
 	versionHandler "github.com/tarampampam/error-pages/internal/http/handlers/version"
 	"github.com/tarampampam/error-pages/internal/metrics"
+	"github.com/tarampampam/error-pages/internal/tpl"
 	"github.com/tarampampam/error-pages/internal/version"
 	"github.com/valyala/fasthttp"
 	"go.uber.org/zap"
@ -24,6 +25,7 @@ type Server struct {
 	log    *zap.Logger
 	fast   *fasthttp.Server
 	router *router.Router
+	rdr    *tpl.TemplateRenderer
 }

 const (
@ -33,6 +35,8 @@ const (
 )

 func NewServer(log *zap.Logger) Server {
+	rdr := tpl.NewTemplateRenderer()
+
 	return Server{
 		// fasthttp docs: <https://github.com/valyala/fasthttp>
 		fast: &fasthttp.Server{
@ -46,6 +50,7 @@ func NewServer(log *zap.Logger) Server {
 		},
 		router: router.New(),
 		log:    log,
+		rdr:    rdr,
 	}
 }

@ -67,6 +72,7 @@ func (s *Server) Register(
 	defaultPageCode string,
 	defaultHTTPCode uint16,
 	showDetails bool,
+	proxyHTTPHeaders []string,
 ) error {
 	reg, m := metrics.NewRegistry(), metrics.NewMetrics()

@ -76,8 +82,8 @@ func (s *Server) Register(

 	s.fast.Handler = common.DurationMetrics(common.LogRequest(s.router.Handler, s.log), &m)

-	s.router.GET("/", indexHandler.NewHandler(cfg, templatePicker, defaultPageCode, defaultHTTPCode, showDetails))
-	s.router.GET("/{code}.html", errorpageHandler.NewHandler(cfg, templatePicker, showDetails))
+	s.router.GET("/", indexHandler.NewHandler(cfg, templatePicker, s.rdr, defaultPageCode, defaultHTTPCode, showDetails, proxyHTTPHeaders)) //nolint:lll
+	s.router.GET("/{code}.html", errorpageHandler.NewHandler(cfg, templatePicker, s.rdr, showDetails, proxyHTTPHeaders))                    //nolint:lll
 	s.router.GET("/version", versionHandler.NewHandler(version.Version()))

 	liveHandler := healthzHandler.NewHandler(checkers.NewLiveChecker())
@ -92,4 +98,12 @@ func (s *Server) Register(
 }

 // Stop server.
-func (s *Server) Stop() error { return s.fast.Shutdown() }
+func (s *Server) Stop() error {
+	if err := s.rdr.Close(); err != nil {
+		defer func() { _ = s.fast.Shutdown() }()
+
+		return err
+	}
+
+	return s.fast.Shutdown()
+}
--- a/internal/pick/picker.go
+++ b/internal/pick/picker.go
@ -51,33 +51,38 @@ func (p *picker) NextIndex() uint32 {

 	case RandomOnce:
 		if p.lastIdx == unsetIdx {
-			p.mu.Lock()
-			defer p.mu.Unlock()
-
-			p.lastIdx = uint32(p.rand.Intn(int(p.maxIdx)))
+			return p.randomizeNext()
 		}

 		return p.lastIdx

 	case RandomEveryTime:
-		var idx = uint32(p.rand.Intn(int(p.maxIdx + 1)))
-
-		p.mu.Lock()
-		defer p.mu.Unlock()
-
-		if idx == p.lastIdx {
-			p.lastIdx++
-		} else {
-			p.lastIdx = idx
-		}
-
-		if p.lastIdx > p.maxIdx { // overflow?
-			p.lastIdx = 0
-		}
-
-		return p.lastIdx
+		return p.randomizeNext()

 	default:
 		panic("picker.NextIndex(): unsupported mode")
 	}
 }
+
+func (p *picker) randomizeNext() uint32 {
+	var idx = uint32(p.rand.Intn(int(p.maxIdx + 1)))
+
+	p.mu.Lock()
+	defer p.mu.Unlock()
+
+	if idx == p.lastIdx {
+		p.lastIdx++
+	} else {
+		p.lastIdx = idx
+	}
+
+	if p.lastIdx > p.maxIdx { // overflow?
+		p.lastIdx = 0
+	}
+
+	if p.lastIdx == unsetIdx {
+		p.lastIdx--
+	}
+
+	return p.lastIdx
+}
--- a/internal/pick/strings_slice.go
+++ b/internal/pick/strings_slice.go
@ -1,5 +1,11 @@
 package pick

+import (
+	"errors"
+	"sync"
+	"time"
+)
+
 type StringsSlice struct {
 	s []string
 	p *picker
@ -7,7 +13,13 @@ type StringsSlice struct {

 // NewStringsSlice creates new StringsSlice.
 func NewStringsSlice(items []string, mode pickMode) *StringsSlice {
-	return &StringsSlice{s: items, p: NewPicker(uint32(len(items)-1), mode)}
+	maxIdx := len(items) - 1
+
+	if maxIdx < 0 {
+		maxIdx = 0
+	}
+
+	return &StringsSlice{s: items, p: NewPicker(uint32(maxIdx), mode)}
 }

 // Pick an element from the strings slice.
@ -18,3 +30,106 @@ func (s *StringsSlice) Pick() string {

 	return s.s[s.p.NextIndex()]
 }
+
+type StringsSliceWithInterval struct {
+	s []string
+	p *picker
+	d time.Duration
+
+	idxMu sync.RWMutex
+	idx   uint32
+
+	close    chan struct{}
+	closedMu sync.RWMutex
+	closed   bool
+}
+
+// NewStringsSliceWithInterval creates new StringsSliceWithInterval.
+func NewStringsSliceWithInterval(items []string, mode pickMode, interval time.Duration) *StringsSliceWithInterval {
+	maxIdx := len(items) - 1
+
+	if maxIdx < 0 {
+		maxIdx = 0
+	}
+
+	if interval <= time.Duration(0) {
+		panic("NewStringsSliceWithInterval: wrong interval")
+	}
+
+	s := &StringsSliceWithInterval{
+		s:     items,
+		p:     NewPicker(uint32(maxIdx), mode),
+		d:     interval,
+		close: make(chan struct{}, 1),
+	}
+
+	s.next()
+
+	go s.rotate()
+
+	return s
+}
+
+func (s *StringsSliceWithInterval) rotate() {
+	defer close(s.close)
+
+	timer := time.NewTimer(s.d)
+	defer timer.Stop()
+
+	for {
+		select {
+		case <-s.close:
+			return
+
+		case <-timer.C:
+			s.next()
+			timer.Reset(s.d)
+		}
+	}
+}
+
+func (s *StringsSliceWithInterval) next() {
+	idx := s.p.NextIndex()
+
+	s.idxMu.Lock()
+	s.idx = idx
+	s.idxMu.Unlock()
+}
+
+// Pick an element from the strings slice.
+func (s *StringsSliceWithInterval) Pick() string {
+	if s.isClosed() {
+		panic("StringsSliceWithInterval.Pick(): closed")
+	}
+
+	if len(s.s) == 0 {
+		return ""
+	}
+
+	s.idxMu.RLock()
+	defer s.idxMu.RUnlock()
+
+	return s.s[s.idx]
+}
+
+func (s *StringsSliceWithInterval) isClosed() (closed bool) {
+	s.closedMu.RLock()
+	closed = s.closed
+	s.closedMu.RUnlock()
+
+	return
+}
+
+func (s *StringsSliceWithInterval) Close() error {
+	if s.isClosed() {
+		return errors.New("closed")
+	}
+
+	s.closedMu.Lock()
+	s.closed = true
+	s.closedMu.Unlock()
+
+	s.close <- struct{}{}
+
+	return nil
+}
--- a/internal/pick/strings_slice_test.go
+++ b/internal/pick/strings_slice_test.go
@ -2,6 +2,7 @@ package pick_test

 import (
 	"testing"
+	"time"

 	"github.com/stretchr/testify/assert"
 	"github.com/tarampampam/error-pages/internal/pick"
@ -47,3 +48,83 @@ func TestStringsSlice_Pick(t *testing.T) {
 		}
 	})
 }
+
+func TestNewStringsSliceWithInterval_Pick(t *testing.T) {
+	t.Run("first", func(t *testing.T) {
+		for i := uint8(0); i < 50; i++ {
+			p := pick.NewStringsSliceWithInterval([]string{}, pick.First, time.Millisecond)
+			assert.Equal(t, "", p.Pick())
+			assert.NoError(t, p.Close())
+			assert.Panics(t, func() { p.Pick() })
+		}
+
+		p := pick.NewStringsSliceWithInterval([]string{"foo", "bar", "baz"}, pick.First, time.Millisecond)
+
+		for i := uint8(0); i < 50; i++ {
+			assert.Equal(t, "foo", p.Pick())
+
+			<-time.After(time.Millisecond * 2)
+		}
+
+		assert.NoError(t, p.Close())
+		assert.Error(t, p.Close())
+		assert.Panics(t, func() { p.Pick() })
+	})
+
+	t.Run("random once", func(t *testing.T) {
+		for i := uint8(0); i < 50; i++ {
+			p := pick.NewStringsSliceWithInterval([]string{}, pick.RandomOnce, time.Millisecond)
+			assert.Equal(t, "", p.Pick())
+			assert.NoError(t, p.Close())
+			assert.Panics(t, func() { p.Pick() })
+		}
+
+		var (
+			p      = pick.NewStringsSliceWithInterval([]string{"foo", "bar", "baz"}, pick.RandomOnce, time.Millisecond)
+			picked = p.Pick()
+		)
+
+		for i := uint8(0); i < 50; i++ {
+			assert.Equal(t, picked, p.Pick())
+
+			<-time.After(time.Millisecond * 2)
+		}
+
+		assert.NoError(t, p.Close())
+		assert.Error(t, p.Close())
+		assert.Panics(t, func() { p.Pick() })
+	})
+
+	t.Run("random every time", func(t *testing.T) {
+		for i := uint8(0); i < 50; i++ {
+			p := pick.NewStringsSliceWithInterval([]string{}, pick.RandomEveryTime, time.Millisecond)
+			assert.Equal(t, "", p.Pick())
+			assert.NoError(t, p.Close())
+			assert.Panics(t, func() { p.Pick() })
+		}
+
+		var changed int
+
+		for i := uint8(0); i < 50; i++ {
+			p := pick.NewStringsSliceWithInterval([]string{"foo", "bar", "baz"}, pick.RandomEveryTime, time.Millisecond) //nolint:lll
+
+			one, two := p.Pick(), p.Pick()
+			assert.Equal(t, one, two)
+
+			<-time.After(time.Millisecond * 2)
+
+			three, four := p.Pick(), p.Pick()
+			assert.Equal(t, three, four)
+
+			if one != three {
+				changed++
+			}
+
+			assert.NoError(t, p.Close())
+			assert.Error(t, p.Close())
+			assert.Panics(t, func() { p.Pick() })
+		}
+
+		assert.GreaterOrEqual(t, changed, 25)
+	})
+}
--- a/internal/tpl/hasher.go
+++ b/internal/tpl/hasher.go
@ -0,0 +1,25 @@
+package tpl
+
+import (
+	"bytes"
+	"crypto/md5" //nolint:gosec
+	"encoding/gob"
+)
+
+const hashLength = 16 // md5 hash length
+
+type Hash [hashLength]byte
+
+func HashStruct(s interface{}) (Hash, error) {
+	var b bytes.Buffer
+
+	if err := gob.NewEncoder(&b).Encode(s); err != nil {
+		return Hash{}, err
+	}
+
+	return md5.Sum(b.Bytes()), nil //nolint:gosec
+}
+
+func HashBytes(b []byte) Hash {
+	return md5.Sum(b) //nolint:gosec
+}
--- a/internal/tpl/hasher_test.go
+++ b/internal/tpl/hasher_test.go
@ -0,0 +1,35 @@
+package tpl_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tarampampam/error-pages/internal/tpl"
+)
+
+func TestHashBytes(t *testing.T) {
+	assert.NotEqual(t, tpl.HashBytes([]byte{1}), tpl.HashBytes([]byte{2}))
+}
+
+func TestHashStruct(t *testing.T) {
+	type s struct {
+		S string
+		I int
+		B bool
+	}
+
+	h1, err1 := tpl.HashStruct(s{S: "foo", I: 1, B: false})
+	assert.NoError(t, err1)
+
+	h2, err2 := tpl.HashStruct(s{S: "bar", I: 2, B: true})
+	assert.NoError(t, err2)
+
+	assert.NotEqual(t, h1, h2)
+
+	type p struct { // no exported fields
+		any string
+	}
+
+	_, err := tpl.HashStruct(p{any: "foo"})
+	assert.Error(t, err)
+}
--- a/internal/tpl/properties.go
+++ b/internal/tpl/properties.go
@ -1,6 +1,8 @@
 package tpl

-import "reflect"
+import (
+	"reflect"
+)

 type Properties struct { // only string properties with a "token" tag, please
 	Code               string `token:"code"`
@ -12,6 +14,8 @@ type Properties struct { // only string properties with a "token" tag, please
 	ServiceName        string `token:"service_name"`
 	ServicePort        string `token:"service_port"`
 	RequestID          string `token:"request_id"`
+	ForwardedFor       string `token:"forwarded_for"`
+	Host               string `token:"host"`
 	ShowRequestDetails bool
 }

@ -31,3 +35,5 @@ func (p *Properties) Replaces() map[string]string {

 	return replaces
 }
+
+func (p *Properties) Hash() (Hash, error) { return HashStruct(p) }
--- a/internal/tpl/properties_test.go
+++ b/internal/tpl/properties_test.go
@ -9,15 +9,17 @@ import (

 func TestProperties_Replaces(t *testing.T) {
 	props := tpl.Properties{
-		Code:        "foo",
-		Message:     "bar",
-		Description: "baz",
-		OriginalURI: "aaa",
-		Namespace:   "bbb",
-		IngressName: "ccc",
-		ServiceName: "ddd",
-		ServicePort: "eee",
-		RequestID:   "fff",
+		Code:         "foo",
+		Message:      "bar",
+		Description:  "baz",
+		OriginalURI:  "aaa",
+		Namespace:    "bbb",
+		IngressName:  "ccc",
+		ServiceName:  "ddd",
+		ServicePort:  "eee",
+		RequestID:    "fff",
+		ForwardedFor: "ggg",
+		Host:         "hhh",
 	}

 	r := props.Replaces()
@ -31,6 +33,8 @@ func TestProperties_Replaces(t *testing.T) {
 	assert.Equal(t, "ddd", r["service_name"])
 	assert.Equal(t, "eee", r["service_port"])
 	assert.Equal(t, "fff", r["request_id"])
+	assert.Equal(t, "ggg", r["forwarded_for"])
+	assert.Equal(t, "hhh", r["host"])

 	props.Code, props.Message, props.Description = "", "", ""

@ -40,3 +44,23 @@ func TestProperties_Replaces(t *testing.T) {
 	assert.Equal(t, "", r["message"])
 	assert.Equal(t, "", r["description"])
 }
+
+func TestProperties_Hash(t *testing.T) {
+	props1 := tpl.Properties{Code: "123"}
+	props2 := tpl.Properties{Code: "123"}
+
+	hash1, err := props1.Hash()
+	assert.NoError(t, err)
+
+	hash2, err := props2.Hash()
+	assert.NoError(t, err)
+
+	assert.Equal(t, hash1, hash2)
+
+	props2.Code = "321"
+
+	hash2, err = props2.Hash()
+	assert.NoError(t, err)
+
+	assert.NotEqual(t, hash1, hash2)
+}
--- a/internal/tpl/render.go
+++ b/internal/tpl/render.go
@ -5,13 +5,16 @@ import (
 	"encoding/json"
 	"os"
 	"strconv"
+	"sync"
 	"text/template"
 	"time"

+	"github.com/pkg/errors"
 	"github.com/tarampampam/error-pages/internal/version"
 )

-var tplFnMap = template.FuncMap{ //nolint:gochecknoglobals // these functions can be used in templates
+// These functions are always allowed in the templates.
+var tplFnMap = template.FuncMap{ //nolint:gochecknoglobals
 	"now":      time.Now,
 	"hostname": os.Hostname,
 	"json":     func(v interface{}) string { b, _ := json.Marshal(v); return string(b) }, //nolint:nlreturn
@ -29,11 +32,113 @@ var tplFnMap = template.FuncMap{ //nolint:gochecknoglobals // these functions ca
 	},
 }

-func Render(content []byte, props Properties) ([]byte, error) {
+var ErrClosed = errors.New("closed")
+
+type TemplateRenderer struct {
+	cacheMu sync.RWMutex
+	cache   map[cacheEntryHash]cacheItem // map key is a unique hash
+
+	cacheCleanupInterval time.Duration
+	cacheItemLifetime    time.Duration
+
+	close    chan struct{}
+	closedMu sync.RWMutex
+	closed   bool
+}
+
+type (
+	cacheEntryHash = [hashLength * 2]byte // two md5 hashes
+	cacheItem      struct {
+		data          []byte
+		expiresAtNano int64
+	}
+)
+
+const (
+	cacheCleanupInterval = time.Second
+	cacheItemLifetime    = time.Second * 2
+)
+
+// NewTemplateRenderer returns new template renderer. Don't forget to call Close() function!
+func NewTemplateRenderer() *TemplateRenderer {
+	tr := &TemplateRenderer{
+		cache:                make(map[cacheEntryHash]cacheItem),
+		cacheCleanupInterval: cacheCleanupInterval,
+		cacheItemLifetime:    cacheItemLifetime,
+		close:                make(chan struct{}, 1),
+	}
+
+	go tr.cleanup()
+
+	return tr
+}
+
+func (tr *TemplateRenderer) cleanup() {
+	defer close(tr.close)
+
+	timer := time.NewTimer(tr.cacheCleanupInterval)
+	defer timer.Stop()
+
+	for {
+		select {
+		case <-tr.close:
+			tr.cacheMu.Lock()
+			for hash := range tr.cache {
+				delete(tr.cache, hash)
+			}
+			tr.cacheMu.Unlock()
+
+			return
+
+		case <-timer.C:
+			tr.cacheMu.Lock()
+			var now = time.Now().UnixNano()
+
+			for hash, item := range tr.cache {
+				if now > item.expiresAtNano {
+					delete(tr.cache, hash)
+				}
+			}
+			tr.cacheMu.Unlock()
+
+			timer.Reset(tr.cacheCleanupInterval)
+		}
+	}
+}
+
+func (tr *TemplateRenderer) Render(content []byte, props Properties) ([]byte, error) { //nolint:funlen
+	if tr.isClosed() {
+		return nil, ErrClosed
+	}
+
 	if len(content) == 0 {
 		return content, nil
 	}

+	var (
+		cacheKey     cacheEntryHash
+		cacheKeyInit bool
+	)
+
+	if propsHash, err := props.Hash(); err == nil {
+		cacheKeyInit, cacheKey = true, tr.mixHashes(propsHash, HashBytes(content))
+
+		tr.cacheMu.RLock()
+		item, hit := tr.cache[cacheKey]
+		tr.cacheMu.RUnlock()
+
+		if hit {
+			// cache item has been expired?
+			if time.Now().UnixNano() > item.expiresAtNano {
+				tr.cacheMu.Lock()
+				delete(tr.cache, cacheKey)
+				tr.cacheMu.Unlock()
+			} else {
+				return item.data, nil
+			}
+		}
+	}
+
 	var funcMap = template.FuncMap{
 		"show_details": func() bool { return props.ShowRequestDetails },
 		"hide_details": func() bool { return !props.ShowRequestDetails },
@ -62,5 +167,50 @@ func Render(content []byte, props Properties) ([]byte, error) {
 		return nil, err
 	}

-	return buf.Bytes(), nil
+	b := buf.Bytes()
+
+	if cacheKeyInit {
+		tr.cacheMu.Lock()
+		tr.cache[cacheKey] = cacheItem{
+			data:          b,
+			expiresAtNano: time.Now().UnixNano() + tr.cacheItemLifetime.Nanoseconds(),
+		}
+		tr.cacheMu.Unlock()
+	}
+
+	return b, nil
+}
+
+func (tr *TemplateRenderer) isClosed() (closed bool) {
+	tr.closedMu.RLock()
+	closed = tr.closed
+	tr.closedMu.RUnlock()
+
+	return
+}
+
+func (tr *TemplateRenderer) Close() error {
+	if tr.isClosed() {
+		return ErrClosed
+	}
+
+	tr.closedMu.Lock()
+	tr.closed = true
+	tr.closedMu.Unlock()
+
+	tr.close <- struct{}{}
+
+	return nil
+}
+
+func (tr *TemplateRenderer) mixHashes(a, b Hash) (result cacheEntryHash) {
+	for i := 0; i < len(a); i++ {
+		result[i] = a[i]
+	}
+
+	for i := 0; i < len(b); i++ {
+		result[i+len(a)] = b[i]
+	}
+
+	return
 }
--- a/internal/tpl/render_test.go
+++ b/internal/tpl/render_test.go
@ -1,6 +1,9 @@
 package tpl_test

 import (
+	"math/rand"
+	"strconv"
+	"sync"
 	"testing"

 	"github.com/stretchr/testify/assert"
@ -8,6 +11,9 @@ import (
 )

 func Test_Render(t *testing.T) {
+	renderer := tpl.NewTemplateRenderer()
+	defer func() { _ = renderer.Close() }()
+
 	for name, tt := range map[string]struct {
 		giveContent string
 		giveProps   tpl.Properties
@ -52,7 +58,7 @@ func Test_Render(t *testing.T) {
 		},
 	} {
 		t.Run(name, func(t *testing.T) {
-			content, err := tpl.Render([]byte(tt.giveContent), tt.giveProps)
+			content, err := renderer.Render([]byte(tt.giveContent), tt.giveProps)

 			if tt.wantError == true {
 				assert.Error(t, err)
@ -64,11 +70,48 @@ func Test_Render(t *testing.T) {
 	}
 }

+func TestTemplateRenderer_Render_Concurrent(t *testing.T) {
+	renderer := tpl.NewTemplateRenderer()
+
+	var wg sync.WaitGroup
+
+	for i := 0; i < 100; i++ {
+		wg.Add(1)
+
+		go func() {
+			defer wg.Done()
+
+			props := tpl.Properties{
+				Code:        strconv.Itoa(rand.Intn(599-300+1) + 300), //nolint:gosec
+				Message:     "Not found",
+				Description: "Blah",
+			}
+
+			content, err := renderer.Render([]byte("{{code}}: {{ message }} {{description}}"), props)
+
+			assert.NoError(t, err)
+			assert.NotEmpty(t, content)
+		}()
+	}
+
+	wg.Wait()
+
+	assert.NoError(t, renderer.Close())
+	assert.EqualError(t, renderer.Close(), tpl.ErrClosed.Error())
+
+	content, err := renderer.Render([]byte{}, tpl.Properties{})
+	assert.Nil(t, content)
+	assert.EqualError(t, err, tpl.ErrClosed.Error())
+}
+
 func BenchmarkRenderHTML(b *testing.B) {
 	b.ReportAllocs()

+	renderer := tpl.NewTemplateRenderer()
+	defer func() { _ = renderer.Close() }()
+
 	for i := 0; i < b.N; i++ {
-		_, _ = tpl.Render(
+		_, _ = renderer.Render(
 			[]byte("{{code}}: {{ message }} {{description}}"),
 			tpl.Properties{Code: "404", Message: "Not found", Description: "Blah"},
 		)
--- a/l10n/l10n.js
+++ b/l10n/l10n.js
@ -0,0 +1,227 @@
+Object.defineProperty(window, 'l10n', {
+    value: new function () {
+        // language codes list: <https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes>
+        const data = { // all keys should be in english (it is default/main locale)
+            'Error': {ru: 'Ошибка', uk: 'Помилка'},
+            'Good luck': {ru: 'Удачи', uk: 'Успіхів'},
+            'UH OH': {ru: 'Ох', uk: 'Ох'},
+            'Request details': {ru: 'Детали запроса', uk: 'Деталі запиту'},
+            'Double-check the URL': {ru: 'Дважды проверьте URL', uk: 'Двічі перевіряйте URL-адресу'},
+            'Alternatively, go back': {ru: 'Или можете вернуться назад', uk: 'Або ви можете повернутися'},
+            'Here\'s what might have happened': {ru: 'Из-за чего это могло случиться', uk: 'Що це може статися'},
+            'You may have mistyped the URL': {
+                ru: 'Вы могли ошибиться в URL',
+                uk: 'Ви можете зробити помилку в URL-адресі'
+            },
+            'The site was moved': {ru: 'Сайт был перемещён', uk: 'Сайт був переміщений'},
+            'It was never here': {ru: 'Он никогда не был здесь', uk: 'Він ніколи не був тут'},
+
+            'Bad Request': {ru: 'Некорректный запрос', uk: 'Неправильний запит'},
+            'The server did not understand the request': {
+                ru: 'Сервер не смог обработать запрос из-за ошибки в нём',
+                uk: 'Сервер не міг обробити запит через помилку в ньому'
+            },
+            'Unauthorized': {ru: 'Не фвторизован', uk: 'Несанкціонований доступ'},
+            'The requested page needs a username and a password': {
+                ru: 'Для доступа к странице требуется логин и пароль',
+                uk: 'Щоб отримати доступ до сторінки, потрібний логін та пароль'
+            },
+            'Forbidden': {ru: 'Запрещено', uk: 'Заборонено'},
+            'Access is forbidden to the requested page': {
+                ru: 'Доступ к странице запрещён',
+                uk: 'Доступ до сторінки заборонено'
+            },
+            'Not Found': {ru: 'Не найдено', uk: 'Не знайдено'},
+            'The server can not find the requested page': {
+                ru: 'Сервер не смог найти запрашиваемую страницу',
+                uk: 'Сервер не міг знайти запитану сторінку'
+            },
+            'Method Not Allowed': {ru: 'Метод не поддерживается', uk: 'Неприпустимий метод'},
+            'The method specified in the request is not allowed': {
+                ru: 'Указанный в запросе метод не поддерживается',
+                uk: 'Метод, зазначений у запиті, не підтримується'
+            },
+            'Proxy Authentication Required': {ru: 'Нужна аутентификация прокси', uk: 'Потрібна ідентифікація проксі'},
+            'You must authenticate with a proxy server before this request can be served': {
+                ru: 'Вы должны быть авторизованы на прокси сервере для обработки этого запроса',
+                uk: 'Ви повинні увійти до проксі-сервера для обробки цього запиту'
+            },
+            'Request Timeout': {ru: 'Истекло время ожидания', uk: 'Час запиту закінчився'},
+            'The request took longer than the server was prepared to wait': {
+                ru: 'Время ожидания сервером передачи от клиента истекло',
+                uk: 'Трансфер термінів очікуваного сервера від клієнта закінчився'
+            },
+            'Conflict': {ru: 'Конфликт', uk: 'Конфлікт'},
+            'The request could not be completed because of a conflict': {
+                ru: 'Запрос не может быть обработан из-за конфликта',
+                uk: 'Запит не може бути оброблений через конфлікт'
+            },
+            'Gone': {ru: 'Удалён', uk: 'Зник'},
+            'The requested page is no longer available': {
+                ru: 'Запрошенная страница была удалена',
+                uk: 'Запитана сторінка була видалена'
+            },
+            'Length Required': {ru: 'Необходима длина', uk: 'Потрібно вказати розмір'},
+            'The "Content-Length" is not defined. The server will not accept the request without it': {
+                ru: 'Заголовок "Content-Length" не был передан. Сервер не может обработать запрос без него',
+                uk: 'Заголовок "Content-Length" не був переданий. Сервер не може обробити запит без нього'
+            },
+            'Precondition Failed': {ru: 'Условие ложно', uk: 'Збій під час обробки попередньої умови'},
+            'The pre condition given in the request evaluated to false by the server': {
+                ru: 'Ни одно из условных полей заголовка запроса не было выполнено',
+                uk: 'Жодна з умовних полів заголовка запиту не була виконана'
+            },
+            'Payload Too Large': {ru: 'Тело запроса слишком велико', uk: 'Тіло запиту перевищує допустимий розмір'},
+            'The server will not accept the request, because the request entity is too large': {
+                ru: 'Сервер не может обработать запрос, так как он слишком большой',
+                uk: 'Сервер не може обробити запит, оскільки він занадто великий'
+            },
+            'Requested Range Not Satisfiable': {ru: 'Диапазон не достижим', uk: 'Запитуваний діапазон недосяжний'},
+            'The requested byte range is not available and is out of bounds': {
+                ru: 'Запрошенный диапазон данных недоступен или вне допустимых пределов',
+                uk: 'Описаний діапазон даних недоступний або з допустимих меж'
+            },
+            'I\'m a teapot': {ru: 'Я чайник', uk: 'Я чайник'},
+            'Attempt to brew coffee with a teapot is not supported': {
+                ru: 'Попытка заварить кофе в чайнике обречена на фиаско',
+                uk: 'Спроба виварити каву в чайник приречена на фіаско'
+            },
+            'Too Many Requests': {ru: 'Слишком много запросов', uk: 'Занадто багато запитів'},
+            'Too many requests in a given amount of time': {
+                ru: 'Отправлено слишком много запросов за короткое время',
+                uk: 'Надіслано занадто багато запитів на короткий час'
+            },
+            'Internal Server Error': {ru: 'Внутренняя ошибка сервера', uk: 'Внутрішня помилка сервера'},
+            'The server met an unexpected condition': {
+                ru: 'Произошло что-то неожиданное на сервере',
+                uk: 'На сервері було щось несподіване'
+            },
+            'Bad Gateway': {ru: 'Ошибка шлюза', uk: 'Помилка шлюзу'},
+            'The server received an invalid response from the upstream server': {
+                ru: 'Сервер получил некорректный ответ от вышестоящего сервера',
+                uk: 'Сервер отримав неправильну відповідь з сервера Upstream'
+            },
+            'Service Unavailable': {ru: 'Сервис недоступен', uk: 'Сервіс недоступний'},
+            'The server is temporarily overloading or down': {
+                ru: 'Сервер временно не может обрабатывать запросы по техническим причинам',
+                uk: 'Сервер тимчасово не може обробляти запити з технічних причин'
+            },
+            'Gateway Timeout': {ru: 'Шлюз не отвечает', uk: 'Шлюз не відповідає'},
+            'The gateway has timed out': {
+                ru: 'Сервер не дождался ответа от вышестоящего сервера',
+                uk: 'Сервер не чекав відповіді від сервера Upstream'
+            },
+            'HTTP Version Not Supported': {ru: 'Версия HTTP не поддерживается', uk: 'Версія НТТР не підтримується'},
+            'The server does not support the "http protocol" version': {
+                ru: 'Сервер не поддерживает запрошенную версию HTTP протокола',
+                uk: 'Сервер не підтримує запитану версію HTTP-протоколу'
+            },
+
+            'Host': {ru: 'Хост', uk: 'Хост'},
+            'Original URI': {ru: 'Исходный URI', uk: 'Вихідний URI'},
+            'Forwarded for': {ru: 'Перенаправлен', uk: 'Перенаправлений'},
+            'Namespace': {ru: 'Пространство имён', uk: 'Простір імен'},
+            'Ingress name': {ru: 'Имя Ingress', uk: 'Ім\'я Ingress'},
+            'Service name': {ru: 'Имя сервиса', uk: 'Ім\'я сервісу'},
+            'Service port': {ru: 'Порт сервиса', uk: 'Порт сервісу'},
+            'Request ID': {ru: 'ID запроса', uk: 'ID запиту'},
+            'Timestamp': {ru: 'Временная метка', uk: 'Тимчасова мітка'},
+
+            'client-side error': {ru: 'ошибка на стороне клиента', uk: 'помилка на стороні клієнта'},
+            'server-side error': {ru: 'ошибка на стороне сервера', uk: 'помилка на стороні сервера'},
+
+            'Your Client': {ru: 'Ваш Браузер', uk: 'Ваш Браузер'},
+            'Network': {ru: 'Сеть', uk: 'Сіть'},
+            'Web Server': {ru: 'Web Сервер', uk: 'Web Сервер'},
+            'What happened?': {ru: 'Что произошло?', uk: 'Що сталося?'},
+            'What can i do?': {ru: 'Что можно сделать?', uk: 'Що можна зробити?'},
+            'Please try again in a few minutes': {
+                ru: 'Пожалуйста, попробуйте повторить запрос ещё раз чуть позже',
+                uk: 'Будь ласка, спробуйте повторити запит ще раз трохи пізніше'
+            },
+            'Working': {ru: 'Работает', uk: 'Працює'},
+            'Unknown': {ru: 'Неизвестно', uk: 'Невідомо'},
+            'Please try to change the request method, headers, payload, or URL': {
+                ru: 'Пожалуйста, попробуйте изменить метод запроса, заголовки, его содержимое или URL',
+                uk: 'Будь ласка, спробуйте змінити метод запиту, заголовки, його вміст або URL-адресу'
+            },
+            'Please check your authorization data': {
+                ru: 'Пожалуйста, проверьте данные авторизации',
+                uk: 'Будь ласка, перевірте дані авторизації'
+            },
+            'Please double-check the URL and try again': {
+                ru: 'Пожалуйста, дважды проверьте URL и попробуйте снова',
+                uk: 'Будь ласка, двічі перевірте URL-адресу і спробуйте знову'
+            },
+        };
+
+        /**
+         * @param {string} token
+         * @return {string}
+         */
+        const serializeToken = function (token) {
+            return token.toLowerCase().replaceAll(/[^a-z0-9]/g, '');
+        };
+
+        // normalize the data keys
+        for (const key in data) {
+            Object.defineProperty(data, serializeToken(key), Object.getOwnPropertyDescriptor(data, key));
+            delete data[key];
+        }
+
+        // detect browser locale (take only 2 first symbols)
+        let activeLocale = navigator.language.substring(0, 2).toLowerCase();
+
+        /**
+         * @param {string} locale
+         */
+        this.setLocale = function (locale) {
+            activeLocale = locale.toLowerCase();
+        }
+
+        /**
+         * @param {string} token
+         * @param {string|undefined?} def
+         */
+        this.translate = function (token, def) {
+            const t = serializeToken(token);
+
+            if (activeLocale === 'en' && data.hasOwnProperty(t)) {
+                return token
+            }
+
+            if (data.hasOwnProperty(t) && data[t].hasOwnProperty(activeLocale)) {
+                return data[t][activeLocale];
+            }
+
+            return def;
+        };
+
+        /**
+         * Localize all elements with HTML attribute `data-l10n`.
+         */
+        this.localizeDocument = function () {
+            const dataAttributeName = 'data-l10n';
+
+            Array.prototype.forEach.call(document.querySelectorAll('[' + dataAttributeName + ']'), ($el) => {
+                const attr = $el.getAttribute(dataAttributeName).trim(),
+                    token = attr.length > 0 ? attr : $el.innerText.trim(),
+                    localized = this.translate(token, undefined);
+
+                if (attr.length === 0) {
+                    $el.setAttribute(dataAttributeName, token);
+                }
+
+                if (localized !== undefined) {
+                    $el.innerText = localized;
+                } else {
+                    console.debug(`Unsupported l10n token detected: "${token}"`, $el);
+                }
+            });
+        };
+    },
+    writable: false,
+    enumerable: false,
+});
+
+window.l10n.localizeDocument();
--- a/l10n/readme.md
+++ b/l10n/readme.md
@ -0,0 +1,12 @@
+# Localization
+
+[![jsDelivr hits](https://img.shields.io/jsdelivr/gh/hm/tarampampam/error-pages)](https://www.jsdelivr.com/package/gh/tarampampam/error-pages)
+
+This directory contains file [l10n.js](l10n.js) for the error pages localization. The logic is very simple - pages load this file using [jsdelivr.com](https://www.jsdelivr.com/) as a CDN for [versioned content from the GitHub repository](https://www.jsdelivr.com/features#gh), and the script from this file translate tags content using the special HTML attribute `data-l10n`.
+
+By default, pages markup contains strings in English (`en` locale). If you want to localize the error pages on the different locales, you should:
+
+- Find your locale name on [this page](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) (column `639-1`)
+- Make a fork of this repository
+- Edit file [l10n.js](l10n.js) in `data` section (append new localized strings) using locale name from the step 1
+- Make a PR with your changes
--- a/templates/app-down.html
+++ b/templates/app-down.html
@ -0,0 +1,242 @@
+<!DOCTYPE html>
+<!--
+    Error {{ code }}: {{ message }}
+    Description: {{ description }}
+-->
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width,initial-scale=1">
+    <meta name="robots" content="noindex, nofollow"/>
+    <title>{{ message }}</title>
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap" rel="stylesheet">
+    <style>
+        :root{--color-bg-primary:#fff;--color-bg-secondary:#eef6fa;--color-bg-sign:#fff;--color-text-primary:#333;--color-text-secondary:#777;--color-img-details:#f62f37;--color-img-primary:#7990a1;--color-img-secondary:#00baff;--font-size-small:13px;--font-size-normal:16px;--font-size-large:45px}
+        @media (prefers-color-scheme:dark){
+            :root{--color-bg-primary:#222526;--color-bg-secondary:#292e2f;--color-bg-sign:#262828;--color-text-primary:#fff;--color-text-secondary:#999;--color-img-details:#c72d34;--color-img-primary:#adacac;--color-img-secondary:#86d3ff}
+        }
+        body,html{background-color:var(--color-bg-primary);color:var(--color-text-primary);font-family:Roboto,Helvetica,sans-serif;font-size:0;margin:0;padding:0;height:100vh;overflow-x:hidden}
+        body{align-items:center;display:flex;justify-content:center;height:100vh}
+        main{width:100%;max-width:1024px;padding:0 40px;display:flex;justify-content:space-between}
+        .content,.picture{box-sizing:border-box}
+        .content{display:flex;flex-direction:column;flex-shrink:0;justify-content:space-around;width:45%;z-index:1}
+        a,p,ul li{font-size:var(--font-size-normal)}
+        .title{line-height:1.2;font-size:var(--font-size-large);margin:0 0 30px;width:130%}
+        .subtitle{display:flex;flex-direction:column;justify-content:center;margin:16px 0}
+        ul{padding:0;list-style:none;line-height:24px}
+        ul li::before{content:'•';padding-right:7px;color:var(--color-img-secondary)}
+        /* {{ if show_details }} */
+        .details{margin:0 0 16px 0}
+        .details p{font-size:var(--font-size-small)}
+        .details ul{line-height:0}
+        .details ul li{padding-top:calc(var(--font-size-small) * 1.5)}
+        .details ul li:first-child{padding-top:calc(var(--font-size-small) * .6)}
+        .details code,.details span,.details ul li::before{font-size:var(--font-size-small);font-weight:400}
+        .details code{padding-left:7px}
+        /* {{ end }} */
+        a{text-decoration:none;color:var(--color-img-secondary)}
+        .hidden{display:none}
+        .picture{display:flex;align-items:center;justify-content:center;width:55%;user-select:none;z-index:0}
+        .picture svg{width:100%}
+        .picture svg .st10,.picture svg .st11,.picture svg .st12,.picture svg .st13,.picture svg .st14,.picture svg .st15,.picture svg .st16,.picture svg .st17,.picture svg .st3,.picture svg .st6,.picture svg .st9{stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:10}
+        .picture svg .st0{fill:var(--color-bg-primary)}
+        .picture svg .st1{fill:url(#svg-background-gradient)}
+        .picture svg .st2{fill:var(--color-bg-secondary)}
+        .picture svg .st3{fill:var(--color-bg-primary);stroke:var(--color-img-primary);stroke-width:3.5}
+        .picture svg .st4{fill:var(--color-img-secondary)}
+        .picture svg .st5{fill:none;stroke:var(--color-img-secondary);stroke-width:4;stroke-linejoin:round;stroke-miterlimit:10}
+        .picture svg .st6{fill:var(--color-bg-primary);stroke:var(--color-img-primary);stroke-width:3}
+        .picture svg .st7{fill:var(--color-img-primary)}
+        .picture svg .st8{fill:none;stroke:var(--color-img-primary);stroke-width:2.5;stroke-linecap:round;stroke-miterlimit:10}
+        .picture svg .st9{fill:none;stroke:var(--color-img-primary);stroke-width:3}
+        .picture svg .st10{fill:none;stroke:var(--color-img-primary);stroke-width:3.5}
+        .picture svg .st11{fill:none;stroke:var(--color-img-secondary);stroke-width:4}
+        .picture svg .st12{fill:var(--color-bg-primary);stroke:var(--color-img-primary);stroke-width:4}
+        .picture svg .st13{fill:none;stroke:var(--color-img-primary);stroke-width:4}
+        .picture svg .st14{fill:none;stroke:var(--color-img-secondary);stroke-width:4.5}
+        .picture svg .st15{fill:none;stroke:var(--color-img-secondary);stroke-width:5}
+        .picture svg .st16{fill:none;stroke:var(--color-img-primary);stroke-width:5}
+        .picture svg .st17{fill:var(--color-bg-primary);stroke:var(--color-img-details);stroke-width:3.5}
+        .picture svg .st19{fill:none;stroke:var(--color-img-details);stroke-width:2.5;stroke-linecap:round;stroke-miterlimit:10}
+        .picture svg .error-code{font:bold 40px sans-serif;fill:var(--color-img-details)}
+        @media (max-width:1024px){
+            :root{--font-size-small:11px;--font-size-normal:14px;--font-size-large:35px}
+            main{display:block;position:relative;padding-top:40px}
+            .content,.picture{width:100%}
+            .content{position:relative;margin:0 auto;z-index:1}
+            .title{width:100%}
+            .picture{position:absolute;top:0;left:0;z-index:0;opacity:.2;width:100%;height:100%;padding:0}
+            .picture svg{max-width:70%}
+        }
+        @media (max-width:600px){
+            .picture svg{max-width:100%}
+        }
+    </style>
+</head>
+<body>
+<main>
+    <div class="content">
+        <h2 class="title" data-l10n>{{ message }}</h2>
+        <p data-l10n>{{ description }}</p>
+        <div class="subtitle if-not-found hidden">
+            <p><span data-l10n>Here's what might have happened</span>:</p>
+            <ul>
+                <li data-l10n>You may have mistyped the URL</li>
+                <li data-l10n>The site was moved</li>
+                <li data-l10n>It was never here</li>
+            </ul>
+        </div>
+        <p class="if-maybe-wrong-uri"><span data-l10n>Double-check the URL</span>. <a class="go-back hidden" data-l10n>Alternatively, go back</a></p>
+        {{ if show_details }}
+        <div class="details">
+            <p><span data-l10n>Request details</span>:</p>
+            <ul>
+                {{- if host }}<li><span><span data-l10n>Host</span>:</span> <code>{{ host }}</code></li>{{ end -}}
+                {{- if original_uri }}<li><span><span data-l10n>Original URI</span>:</span> <code>{{ original_uri }}</code></li>{{ end -}}
+                {{- if forwarded_for }}<li><span><span data-l10n>Forwarded for</span>:</span> <code>{{ forwarded_for }}</code></li>{{ end -}}
+                {{- if namespace }}<li><span><span data-l10n>Namespace</span>:</span> <code>{{ namespace }}</code></li>{{ end -}}
+                {{- if ingress_name }}<li><span><span data-l10n>Ingress name</span>:</span> <code>{{ ingress_name }}</code></li>{{ end -}}
+                {{- if service_name }}<li><span><span data-l10n>Service name</span>:</span> <code>{{ service_name }}</code></li>{{ end -}}
+                {{- if service_port }}<li><span><span data-l10n>Service port</span>:</span> <code>{{ service_port }}</code></li>{{ end -}}
+                {{- if request_id }}<li><span><span data-l10n>Request ID</span>:</span> <code>{{ request_id }}</code></li>{{ end -}}
+                <li><span><span data-l10n>Timestamp</span>:</span> <code>{{ now.Unix }}</code></li>
+            </ul>
+        </div>
+        {{ end }}
+    </div>
+    <div class="picture">
+        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 600 480" x="0px" y="0px" xml:space="preserve">
+            <rect y="0" class="st0" width="600" height="480"></rect>
+            <radialgradient id="svg-background-gradient" cx="328.1394" cy="306.3561" r="219.5134" gradientUnits="userSpaceOnUse">
+                <stop offset="0" style="stop-color:var(--color-bg-secondary)"></stop>
+                <stop offset="0.5002" style="stop-color:var(--color-bg-secondary)"></stop>
+                <stop offset="1" style="stop-color:var(--color-bg-primary)"></stop>
+            </radialgradient>
+            <rect x="95.2" y="35.7" class="st1" width="460" height="271.4"></rect>
+            <ellipse class="st2" cx="289.7" cy="352.3" rx="69.5" ry="13.9"></ellipse>
+            <ellipse class="st2" cx="180.5" cy="396.3" rx="51.2" ry="9.5"></ellipse>
+            <ellipse class="st2" cx="381.3" cy="418.3" rx="40.8" ry="6.4"></ellipse>
+            <path class="st3" d="M551.1,285.8H527c-2.3,0-4.1-1.8-4.1-4.1v-30c0-2.3,1.8-4.1,4.1-4.1h24.1c2.3,0,4.1,1.8,4.1,4.1v30 C555.2,284,553.4,285.8,551.1,285.8z"></path>
+            <circle class="st3" cx="539.1" cy="266.7" r="10.3"></circle>
+            <path class="st4" d="M265.6,343.3c-5,0-9,4-9,9h18C274.6,347.3,270.6,343.3,265.6,343.3z"></path>
+            <line class="st5" x1="272.7" y1="328.1" x2="272.7" y2="352.3"></line>
+            <path class="st4" d="M307,343.3c-5,0-9,4-9,9h18C316,347.3,311.9,343.3,307,343.3z"></path>
+            <line class="st5" x1="314.1" y1="328.1" x2="314.1" y2="352.3"></line>
+            <path class="st6" d="M380.7,422.6l-37.6-6.4c-1.5-0.3-2.5-1.5-2.2-2.9l4.6-26.8c0.2-1.4,1.6-2.2,3-2l37.6,6.4 c1.5,0.3,2.5,1.5,2.2,2.9l-4.6,26.8C383.6,422,382.2,422.9,380.7,422.6z"></path>
+            <path class="st6" d="M344.6,391.5l0.8-4.5c0.3-1.7,1.6-2.8,3.1-2.5l37.6,6.4c1.5,0.3,2.4,1.7,2.1,3.4l-0.8,4.5L344.6,391.5z"></path>
+            <circle class="st7" cx="349" cy="388.4" r="1"></circle>
+            <circle class="st7" cx="353.1" cy="389.1" r="1"></circle>
+            <circle class="st7" cx="357.1" cy="389.8" r="1"></circle>
+            <line class="st8" x1="360.4" y1="402.8" x2="367.4" y2="412.7"></line>
+            <line class="st8" x1="368.8" y1="404.3" x2="359" y2="411.2"></line>
+            <path class="st6" d="M166.4,401.4l-36.6-10.8c-1.5-0.4-2.3-1.8-1.9-3.1l7.7-26.1c0.4-1.3,1.8-2,3.3-1.6l36.6,10.8 c1.5,0.4,2.3,1.8,1.9,3.1l-7.7,26.1C169.3,401.1,167.9,401.8,166.4,401.4z"></path>
+            <path class="st6" d="M134.2,366.2l1.3-4.4c0.5-1.6,2-2.6,3.4-2.1l36.6,10.8c1.5,0.4,2.2,2,1.7,3.6l-1.3,4.4L134.2,366.2z"></path>
+            <circle class="st7" cx="138.9" cy="363.7" r="1"></circle>
+            <circle class="st7" cx="142.9" cy="364.8" r="1"></circle>
+            <circle class="st7" cx="146.9" cy="366" r="1"></circle>
+            <path class="st6" d="M220.9,399.3l-38-3.9c-1.5-0.2-2.5-1.3-2.4-2.7l2.8-27.1c0.1-1.4,1.4-2.3,2.9-2.2l38,3.9 c1.5,0.2,2.5,1.3,2.4,2.7l-2.8,27.1C223.6,398.5,222.4,399.5,220.9,399.3z"></path>
+            <path class="st6" d="M188.6,400.9l-38.1,2.8c-1.5,0.1-2.7-0.9-2.8-2.3l-2-27.1c-0.1-1.4,1-2.6,2.5-2.7l38.1-2.8 c1.5-0.1,2.7,0.9,2.8,2.3l2,27.1C191.2,399.6,190.1,400.8,188.6,400.9z"></path>
+            <path class="st9" d="M146.1,379.4l-0.3-4.5c-0.1-1.7,0.9-3.1,2.4-3.2l38.1-2.8c1.5-0.1,2.8,1.1,2.9,2.8l0.3,4.5L146.1,379.4z"></path>
+            <circle class="st7" cx="149.6" cy="375.3" r="1"></circle>
+            <circle class="st7" cx="153.7" cy="375" r="1"></circle>
+            <circle class="st7" cx="157.8" cy="374.7" r="1"></circle>
+            <line class="st8" x1="164.1" y1="386.6" x2="173.3" y2="394.4"></line>
+            <line class="st8" x1="172.7" y1="385.9" x2="164.8" y2="395.1"></line>
+            <path class="st10" d="M539.1,267.8c0,96.1-51.7,97.6-67.6,98.6c-28.1,1.8-76.3-14.4-63-25.6c13.3-11.2,53.8-10.3,59.3-4.3 c4,4.3,6.1,16.6-49.9,15.8c-29.4-0.4-51-8.4-60.8-32.1"></path>
+            <path class="st11" d="M184.1,262.5c17.8,9,28.4-2.4,28.4-2.4"></path>
+            <ellipse class="st0" cx="289.7" cy="170.7" rx="77.1" ry="21.7"></ellipse>
+            <path class="st12" d="M366.8,308.7c0,12.1-34.5,21.8-77.1,21.8c-42.6,0-77.1-9.8-77.1-21.8V170.7c0,12.1,34.5,21.8,77.1,21.8 c42.6,0,77.1-9.8,77.1-21.8V308.7z"></path>
+            <path class="st13" d="M212.6,170.7c0-12.1,34.5-21.8,77.1-21.8c42.6,0,77.1,9.8,77.1,21.8"></path>
+            <path class="st13" d="M366.8,216.7c0,12.1-34.5,21.8-77.1,21.8c-42.6,0-77.1-9.8-77.1-21.8"></path>
+            <path class="st13" d="M366.8,262.7c0,12.1-34.5,21.8-77.1,21.8c-42.6,0-77.1-9.8-77.1-21.8"></path>
+            <path class="st11" d="M384.2,279.8c-6.2-18.9-25.1-18.7-25.1-18.7"></path>
+            <path class="st14" d="M378,288.7c0,0,0-6.3,5.6-8.8c0,0,1.6,0.5,3.3,1.3"></path>
+            <path class="st15" d="M384.2,279.8"></path>
+            <circle class="st4" cx="319" cy="254.8" r="4.2"></circle>
+            <circle class="st4" cx="257.2" cy="255.4" r="4.2"></circle>
+            <line class="st16" x1="182.4" y1="284.4" x2="179" y2="229.2"></line>
+            <polygon class="st17" points="191.3,144 153.6,146.3 128.7,174.8 131,212.7 159.3,238 196.9,235.6 221.8,207.2 219.5,169.2" style="fill:var(--color-bg-sign)"></polygon>
+            <text class="error-code" x="125" y="220" transform="rotate(-5)">{{ code }}</text>
+            <line class="st14" x1="183.2" y1="255.9" x2="175.9" y2="258.8"></line>
+            <line class="st14" x1="184.7" y1="260.4" x2="175.8" y2="263"></line>
+            <line class="st14" x1="185.4" y1="265.4" x2="176.9" y2="267.2"></line>
+            <ellipse class="st11" cx="287.7" cy="269" rx="4.4" ry="6.7"></ellipse>
+            <path class="st6" d="M405.5,316l-37.8,5.5c-1.5,0.2-2.8-0.7-3-2.1l-3.9-26.9c-0.2-1.4,0.8-2.6,2.3-2.8l37.8-5.5 c1.5-0.2,2.8,0.7,3,2.1l3.9,26.9C407.9,314.5,407,315.7,405.5,316z"></path>
+            <path class="st6" d="M361.5,297.6l-0.7-4.5c-0.2-1.7,0.7-3.1,2.2-3.4l37.8-5.5c1.5-0.2,2.8,0.9,3.1,2.6l0.7,4.5L361.5,297.6z"></path>
+            <circle class="st7" cx="364.7" cy="293.3" r="1"></circle>
+            <circle class="st7" cx="368.8" cy="292.7" r="1"></circle>
+            <circle class="st7" cx="372.9" cy="292.1" r="1"></circle>
+            <line class="st19" x1="380" y1="303.4" x2="389.7" y2="310.6"></line>
+            <line class="st19" x1="388.5" y1="302.2" x2="381.3" y2="311.9"></line>
+            <path class="st6" d="M204.8,355.2l-28.4,25.5c-1.1,1-2.7,1-3.6-0.1l-18.2-20.3c-0.9-1-0.8-2.6,0.3-3.6l28.4-25.5 c1.1-1,2.7-1,3.6,0.1l18.2,20.3C206.1,352.6,205.9,354.2,204.8,355.2z"></path>
+            <path class="st9" d="M158,364.1l-3-3.4c-1.1-1.3-1.1-3,0-4l28.4-25.5c1.1-1,2.9-0.8,4,0.5l3,3.4L158,364.1z"></path>
+            <circle class="st7" cx="158.3" cy="358.7" r="1"></circle>
+            <circle class="st7" cx="161.3" cy="356" r="1"></circle>
+            <circle class="st7" cx="164.4" cy="353.2" r="1"></circle>
+            <line class="st8" x1="176.7" y1="358.8" x2="188.7" y2="359.4"></line>
+            <line class="st8" x1="183" y1="353.1" x2="182.4" y2="365.1"></line>
+            <path class="st6" d="M219.9,344l14.8,35.2c0.6,1.4,0,2.9-1.2,3.4l-25.1,10.5c-1.3,0.5-2.7-0.1-3.3-1.5l-14.8-35.2 c-0.6-1.4,0-2.9,1.2-3.4l25.1-10.5C217.8,341.9,219.3,342.6,219.9,344z"></path>
+            <path class="st9" d="M213,391.1l-4.2,1.8c-1.6,0.7-3.2,0.1-3.8-1.3l-14.8-35.2c-0.6-1.4,0.2-3,1.7-3.6l4.2-1.8L213,391.1z"></path>
+            <circle class="st7" cx="208" cy="389.1" r="1"></circle>
+            <circle class="st7" cx="206.4" cy="385.3" r="1"></circle>
+            <circle class="st7" cx="204.8" cy="381.5" r="1"></circle>
+            <line class="st8" x1="214.1" y1="371.7" x2="218.6" y2="360.6"></line>
+            <line class="st8" x1="210.8" y1="363.9" x2="221.9" y2="368.4"></line>
+            <path class="st14" d="M394.1,287.1c-0.7-1.6-3.9-4.5-7.2-5.9"></path>
+            <path class="st6" d="M419.7,413.7l-37.8,5.2c-1.5,0.2-2.8-0.7-3-2.1l-3.7-27c-0.2-1.4,0.8-2.6,2.3-2.8l37.8-5.2 c1.5-0.2,2.8,0.7,3,2.1l3.7,27C422.2,412.2,421.2,413.5,419.7,413.7z"></path>
+            <path class="st6" d="M375.9,394.8l-0.6-4.5c-0.2-1.7,0.7-3.1,2.2-3.3l37.8-5.2c1.5-0.2,2.8,0.9,3.1,2.6l0.6,4.5L375.9,394.8z"></path>
+            <circle class="st7" cx="379.2" cy="390.6" r="1"></circle>
+            <circle class="st7" cx="383.3" cy="390" r="1"></circle>
+            <circle class="st7" cx="387.4" cy="389.5" r="1"></circle>
+            <line class="st8" x1="394.4" y1="400.9" x2="404" y2="408.2"></line>
+            <line class="st8" x1="402.9" y1="399.7" x2="395.6" y2="409.4"></line>
+            <polygon class="st17" points="361,62.2 346.5,104.9 364.7,107.8 347.6,141.8 382,99.7 363.5,93.5 385,63.8 "></polygon>
+            <polygon class="st17" points="396.5,101.6 374.8,122.8 384.1,130.2 363.6,145.4 396.4,130.6 388,121.2 409.5,109.9 "></polygon>
+            <line class="st14" x1="384.7" y1="281.7" x2="386" y2="290.6"></line>
+        </svg>
+    </div>
+</main>
+<script>
+    Array.prototype.forEach.call(document.getElementsByClassName('if-not-found'), function ($el) {
+        $el.style.display = "{{ code }}" === "404" ? 'block' : 'none';
+    });
+
+    Array.prototype.forEach.call(document.getElementsByClassName('if-maybe-wrong-uri'), function ($el) {
+        $el.style.display = ["401", "403", "404", "418", "505"].includes("{{ code }}") ? 'block' : 'none';
+    });
+
+    Array.prototype.forEach.call(document.getElementsByClassName('go-back'), function ($el) {
+        if (document.referrer !== '' || history.length > 1) {
+            $el.setAttribute('href', '#back-to-the-future');
+
+            $el.addEventListener('click', function (event) {
+                history.back();
+                event.preventDefault();
+
+                return false;
+            }, false);
+
+            $el.style.display = 'inline-block'; // show the element
+        } else {
+            $el.style.display = 'none'; // hide the element
+        }
+    });
+
+    if (navigator.language.substring(0, 2).toLowerCase() !== 'en') {
+        ((s, p) => { // localize the page (details here - https://github.com/tarampampam/error-pages/tree/master/l10n)
+            s.src = 'https://cdn.jsdelivr.net/gh/tarampampam/error-pages@2/l10n/l10n.min.js'; // '../l10n/l10n.js';
+            s.async = s.defer = true;
+            s.addEventListener('load', () => p.removeChild(s));
+            p.appendChild(s);
+        })(document.createElement('script'), document.body);
+    }
+</script>
+</body>
+<!--
+    Error {{ code }}: {{ message }}
+    Description: {{ description }}
+-->
+</html>
--- a/templates/cats.html
+++ b/templates/cats.html
@ -62,32 +62,40 @@
        {{ if show_details }}
        <div class="details">
            <table>
+                {{- if host }}<tr>
+                    <td class="name" data-l10n>Host</td>
+                    <td class="value">{{ host }}</td>
+                </tr>{{ end -}}
                {{- if original_uri }}<tr>
-                    <td class="name">Original URI</td>
+                    <td class="name" data-l10n>Original URI</td>
                    <td class="value">{{ original_uri }}</td>
                </tr>{{ end -}}
+                {{- if forwarded_for }}<tr>
+                    <td class="name" data-l10n>Forwarded for</td>
+                    <td class="value">{{ forwarded_for }}</td>
+                </tr>{{ end -}}
                {{- if namespace }}<tr>
-                    <td class="name">Namespace</td>
+                    <td class="name" data-l10n>Namespace</td>
                    <td class="value">{{ namespace }}</td>
                </tr>{{ end -}}
                {{- if ingress_name }}<tr>
-                    <td class="name">Ingress name</td>
+                    <td class="name" data-l10n>Ingress name</td>
                    <td class="value">{{ ingress_name }}</td>
                </tr>{{ end -}}
                {{- if service_name }}<tr>
-                    <td class="name">Service name</td>
+                    <td class="name" data-l10n>Service name</td>
                    <td class="value">{{ service_name }}</td>
                </tr>{{ end -}}
                {{- if service_port }}<tr>
-                    <td class="name">Service port</td>
+                    <td class="name" data-l10n>Service port</td>
                    <td class="value">{{ service_port }}</td>
                </tr>{{ end -}}
                {{- if request_id }}<tr>
-                    <td class="name">Request ID</td>
+                    <td class="name" data-l10n>Request ID</td>
                    <td class="value">{{ request_id }}</td>
                </tr>{{ end -}}
                <tr>
-                    <td class="name">Timestamp</td>
+                    <td class="name" data-l10n>Timestamp</td>
                    <td class="value">{{ now.Unix }}</td>
                </tr>
            </table>
@ -95,6 +103,16 @@
        {{ end }}
    </div>
 </div>
+<script>
+    if (navigator.language.substring(0, 2).toLowerCase() !== 'en') {
+        ((s, p) => { // localize the page (details here - https://github.com/tarampampam/error-pages/tree/master/l10n)
+            s.src = 'https://cdn.jsdelivr.net/gh/tarampampam/error-pages@2/l10n/l10n.min.js'; // '../l10n/l10n.js';
+            s.async = s.defer = true;
+            s.addEventListener('load', () => p.removeChild(s));
+            p.appendChild(s);
+        })(document.createElement('script'), document.body);
+    }
+</script>
 </body>
 <!--
    Error {{ code }}: {{ message }}
--- a/templates/connection.html
+++ b/templates/connection.html
@ -0,0 +1,262 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8"/>
+    <meta name="viewport" content="width=device-width, initial-scale=1"/>
+    <meta name="robots" content="noindex, nofollow"/>
+    <meta http-equiv="X-UA-Compatible" content="IE=edge"/>
+    <title>{{ code }} | {{ message }}</title>
+    <link rel="preconnect" href="https://fonts.gstatic.com"/>
+    <link href="https://fonts.googleapis.com/css2?family=Red+Hat+Display:wght@500&family=Fira+Mono&family=Ubuntu&display=swap" rel="stylesheet"/>
+    <style>
+        /** Idea author: https://github.com/186526/CloudflareCustomErrorPage */
+        :root{--color-bg-primary:#fff;--color-text-primary:#000;--color-text-secondary:#575958;--font-size-primary:56px;--font-size-secondary:20px;--ui-card-color-bg:#f2f2f2;--color-text-ok:#137333;--color-bg-ok:#e6f4ea;--color-text-error:#c5221f;--color-bg-error:#fce8e6;--color-text-warning:#b05a00;--color-bg-warning:#fef7e0;--icon-size:48px}
+        @media (prefers-color-scheme:dark){
+            :root{--color-bg-primary:#111;--color-text-primary:rgba(255, 255, 255, 0.86);--color-text-secondary:rgba(255, 255, 255, 0.4);--ui-card-color-bg:rgba(40, 40, 40, 0.73);--color-bg-ok:#07220f;--color-bg-error:#270501;--color-bg-warning:#392605}
+        }
+        body{margin:2rem 2rem;font-family:'Red Hat Display',Ubuntu,Roboto,'Noto Sans SC',sans-serif;color:var(--color-text-primary);background-color:var(--color-bg-primary)}
+        header{margin-left:1rem}
+        header .error-code{font-size:var(--font-size-primary);line-height:var(--font-size-primary);font-family:'Fira Mono',Ubuntu,monospace;font-weight:400;margin:0 0 0 10px}
+        header .error-description{font-family:Ubuntu,Roboto,'Noto Sans SC',sans-serif;font-size:var(--font-size-secondary);color:var(--color-text-secondary);margin:0 0 0 10px}
+        code{font-family:'Fira Mono',monospace}
+        .status{margin-top:2.5rem;display:flex;flex-direction:row;flex-wrap:wrap;justify-content:center;align-items:center}
+        .card{background-color:var(--ui-card-color-bg);padding:2rem;margin:1rem 1rem;min-height:3rem;border-radius:9px;flex-grow:1}
+        .arrows svg{fill:var(--color-text-secondary)}
+        .icon svg{width:var(--icon-size);height:auto;fill:var(--color-text-primary)}
+        .card.ok{background-color:var(--color-bg-ok)}.card.ok .status-text{color:var(--color-text-ok)}.card.ok svg{fill:var(--color-text-ok)}
+        .card.error{background-color:var(--color-bg-error)}.card.error .status-text{color:var(--color-text-error)}.card.error svg{fill:var(--color-text-error)}
+        .card.warning{background-color:var(--color-bg-warning)}.card.warning .status-text{color:var(--color-text-warning)}.card.warning svg{fill:var(--color-text-warning)}
+        .card main{font-size:calc(var(--font-size-secondary) + .1rem)}
+        .card .status-text,.reason p{margin:0;font-family:Ubuntu,Roboto,Noto Sans SC,sans-serif}
+        .reason p{line-height:125%}
+        a{text-decoration:none;color:#1967d2}
+        .reason{display:flex;flex-direction:row;flex-wrap:wrap;justify-content:space-between;align-items:baseline}
+        .reason>*{display:block;margin:1rem;flex-grow:1;max-width:40%}
+        .reason h2{font-size:calc(var(--font-size-secondary) + .2rem);margin:0 0 .6em 0;font-weight:550}
+        footer{margin:1rem;color:var(--color-text-secondary);font-size:0}
+        /* {{ if show_details }} */
+        footer .details{margin-top:20px}
+        footer .details ul{padding:0}
+        footer .details code,footer .details span{font-size:calc(var(--font-size-secondary) - .6rem)}
+        footer .details code{padding-left:7px}
+        /* {{ end }} */
+        @media screen and (max-width:820px){
+            .arrows{display:none}
+        }
+        @media screen and (max-width:480px){
+            .reason>*{max-width:100%}
+            /* {{ if show_details }} */
+            footer .details code,footer .details span{font-size:calc(var(--font-size-secondary) - .3rem)}
+            /* {{ end }} */
+        }
+        @media screen and (min-width:768px){
+            body{margin:8% 10%}
+            header>*{display:inline-block;margin-left:1%}
+        }
+    </style>
+</head>
+<body>
+<header>
+    <h1 class="error-code">{{ code }}</h1>
+    <p class="error-description">{{ message }}</p>
+</header>
+<div class="status">
+    <div class="card warning" id="client-status-card">
+        <i class="icon">
+            <svg xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 0 24 24" width="24px" fill="#000000">
+                <path d="M0 0h24v24H0V0z" fill="none"/>
+                <path d="M19 4H5c-1.11 0-2 .9-2 2v12c0 1.1.89 2 2 2h14c1.1 0 2-.9 2-2V6c0-1.1-.89-2-2-2zm0 14H5V8h14v10z"/>
+            </svg>
+        </i>
+        <main data-l10n>Your Client</main>
+        <p class="status-text" data-l10n>Unknown</p>
+    </div>
+
+    <div class="arrows">
+        <svg xmlns="http://www.w3.org/2000/svg" height="24px" width="24px" fill="#000000">
+            <defs>
+                <symbol id="arrows-horizontal" viewBox="0 0 24 24">
+                    <rect fill="none" height="24" width="24" x="0"/>
+                    <polygon points="7.41,13.41 6,12 2,16 6,20 7.41,18.59 5.83,17 21,17 21,15 5.83,15"/>
+                    <polygon points="16.59,10.59 18,12 22,8 18,4 16.59,5.41 18.17,7 3,7 3,9 18.17,9"/>
+                </symbol>
+            </defs>
+            <use href="#arrows-horizontal"/>
+        </svg>
+    </div>
+
+    <div class="card ok" id="network-status-card">
+        <i class="icon">
+            <svg xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 0 24 24" width="24px" fill="#000000">
+                <path d="M0 0h24v24H0V0z" fill="none"/>
+                <path d="M12 6c2.62 0 4.88 1.86 5.39 4.43l.3 1.5 1.53.11c1.56.1 2.78 1.41 2.78 2.96 0 1.65-1.35 3-3 3H6c-2.21 0-4-1.79-4-4 0-2.05 1.53-3.76 3.56-3.97l1.07-.11.5-.95C8.08 7.14 9.94 6 12 6m0-2C9.11 4 6.6 5.64 5.35 8.04 2.34 8.36 0 10.91 0 14c0 3.31 2.69 6 6 6h13c2.76 0 5-2.24 5-5 0-2.64-2.05-4.78-4.65-4.96C18.67 6.59 15.64 4 12 4z"/>
+            </svg>
+        </i>
+        <main data-l10n>Network</main>
+        <p class="status-text" data-l10n>Working</p>
+    </div>
+
+    <div class="arrows">
+        <svg xmlns="http://www.w3.org/2000/svg" height="24px" width="24px" fill="#000000">
+            <use href="#arrows-horizontal" />
+        </svg>
+    </div>
+
+    <div class="card warning" id="server-status-card">
+        <i class="icon">
+            <svg xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 0 24 24" width="24px" fill="#000000">
+                <path d="M0 0h24v24H0V0z" fill="none"/>
+                <path d="M19 15v4H5v-4h14m1-2H4c-.55 0-1 .45-1 1v6c0 .55.45 1 1 1h16c.55 0 1-.45 1-1v-6c0-.55-.45-1-1-1zM7 18.5c-.82 0-1.5-.67-1.5-1.5s.68-1.5 1.5-1.5 1.5.67 1.5 1.5-.67 1.5-1.5 1.5zM19 5v4H5V5h14m1-2H4c-.55 0-1 .45-1 1v6c0 .55.45 1 1 1h16c.55 0 1-.45 1-1V4c0-.55-.45-1-1-1zM7 8.5c-.82 0-1.5-.67-1.5-1.5S6.18 5.5 7 5.5s1.5.68 1.5 1.5S7.83 8.5 7 8.5z"/>
+            </svg>
+        </i>
+        <main data-l10n>Web Server</main>
+        <p class="status-text" data-l10n>Unknown</p>
+    </div>
+</div>
+<div class="reason">
+    <div class="what-happened">
+        <h2 data-l10n>What happened?</h2>
+        <p class="description" data-l10n>{{ description }}</p>
+    </div>
+    <div class="what-can-i-do">
+        <h2 data-l10n>What can I do?</h2>
+        <p class="description" data-l10n>Please try again in a few minutes</p>
+    </div>
+</div>
+</body>
+<footer>
+    {{ if show_details }}
+    <div class="details">
+        <ul>
+            {{- if host }}<li><span><span data-l10n>Host</span>:</span> <code>{{ host }}</code></li>{{ end -}}
+            {{- if original_uri }}<li><span><span data-l10n>Original URI</span>:</span> <code>{{ original_uri }}</code></li>{{ end -}}
+            {{- if forwarded_for }}<li><span><span data-l10n>Forwarded for</span>:</span> <code>{{ forwarded_for }}</code></li>{{ end -}}
+            {{- if namespace }}<li><span><span data-l10n>Namespace</span>:</span> <code>{{ namespace }}</code></li>{{ end -}}
+            {{- if ingress_name }}<li><span><span data-l10n>Ingress name</span>:</span> <code>{{ ingress_name }}</code></li>{{ end -}}
+            {{- if service_name }}<li><span><span data-l10n>Service name</span>:</span> <code>{{ service_name }}</code></li>{{ end -}}
+            {{- if service_port }}<li><span><span data-l10n>Service port</span>:</span> <code>{{ service_port }}</code></li>{{ end -}}
+            {{- if request_id }}<li><span><span data-l10n>Request ID</span>:</span> <code>{{ request_id }}</code></li>{{ end -}}
+            <li><span><span data-l10n>Timestamp</span>:</span> <code>{{ now.Unix }}</code></li>
+        </ul>
+    </div>
+    {{ end }}
+</footer>
+<script>
+    const errorCode = parseInt(`{{ code }}`, 10);
+
+    if (typeof errorCode !== 'undefined' && !isNaN(errorCode)) {
+        /**
+         * @param {HTMLElement} $card
+         * @param { {isOk?: boolean, isWarning?: boolean, isError?: boolean} } state
+         * @param {string} statusText
+         */
+        const setCardState = function ($card, state, statusText) {
+            const okClass = 'ok', warnClass = 'warning', errClass = 'error',
+                $statusText = $card.querySelectorAll('.status-text');
+
+            switch (true) {
+                case state.isOk === true:
+                    $card.classList.remove(errClass, warnClass);
+                    $card.classList.add(okClass);
+                    $statusText.forEach(($statusText) => $statusText.innerText = statusText);
+                    break;
+
+                case state.isWarning === true:
+                    $card.classList.remove(okClass, errClass);
+                    $card.classList.add(warnClass);
+                    $statusText.forEach(($statusText) => $statusText.innerText = statusText);
+                    break;
+
+                case state.isError === true:
+                    $card.classList.remove(okClass, warnClass);
+                    $card.classList.add(errClass);
+                    $statusText.forEach(($statusText) => $statusText.innerText = statusText);
+                    break;
+            }
+        };
+
+        /**
+         * @param { {whatHappened?: string, whatToDo?: string} } reasons
+         */
+        const setReasons = function (reasons) {
+            const descSelector = '.description';
+
+            Array.prototype.forEach.call(document.getElementsByClassName('what-happened'), ($el) => {
+                if (typeof reasons.whatHappened === 'string' && reasons.whatHappened.length > 0) {
+                    Array.prototype.forEach.call($el.querySelectorAll(descSelector), ($desc)  => $desc.innerText = reasons.whatHappened);
+                } else {
+                    $el.remove();
+                }
+            });
+
+            Array.prototype.forEach.call(document.getElementsByClassName('what-can-i-do'), ($el) => {
+                if (typeof reasons.whatToDo === 'string' && reasons.whatToDo.length > 0) {
+                    Array.prototype.forEach.call($el.querySelectorAll(descSelector), ($desc)  => $desc.innerText = reasons.whatToDo);
+                } else {
+                    $el.remove();
+                }
+            });
+        };
+
+        /**
+         * @param {string} text
+         */
+        const setErrorDescription = function (text) {
+            Array.prototype.forEach.call(document.getElementsByClassName('error-description'), function ($el) {
+                $el.innerHTML = text;
+            });
+        };
+
+        const message = `{{ message }}`.trim(), cards = {
+            $client: document.getElementById('client-status-card'),
+            $network: document.getElementById('network-status-card'),
+            $server: document.getElementById('server-status-card'),
+        };
+
+        let whatToDo = 'Please try again in a few minutes';
+
+        switch (true) {
+            case errorCode >= 400 && errorCode <= 499:
+                switch (errorCode) {
+                    case 400: case 405: case 411: case 413: whatToDo = 'Please try to change the request method, headers, payload, or URL'; break;
+                    case 401: case 403: case 407: whatToDo = 'Please check your authorization data'; break;
+                    case 404: whatToDo = 'Please double-check the URL and try again'; break;
+                    case 409: case 410: case 418: whatToDo = '¯\\_(ツ)_/¯'; break;
+                }
+
+                setErrorDescription(`<span data-l10n>${message}</span> (<span data-l10n>client-side error</span>)`);
+                setCardState(cards.$client, {isError: true}, message)
+                setCardState(cards.$network, {isOk: true}, 'Working')
+                setCardState(cards.$server, {isOk: true}, 'Working')
+                break;
+
+            case errorCode >= 500 && errorCode <= 599:
+                setErrorDescription(`<span data-l10n>${message}</span> (<span data-l10n>server-side error</span>)`);
+                setCardState(cards.$client, {isOk: true}, 'Working')
+                setCardState(cards.$network, {isOk: true}, 'Working')
+                setCardState(cards.$server, {isError: true}, message)
+                break;
+
+            default:
+                setErrorDescription(message);
+                setCardState(cards.$client, {isWarning: true}, 'Unknown')
+                setCardState(cards.$network, {isOk: true}, 'Working')
+                setCardState(cards.$server, {isWarning: true}, 'Unknown')
+                break;
+        }
+
+        setReasons({whatHappened: `{{ description }}`.trim(), whatToDo: whatToDo.trim()});
+    } else {
+        console.warn('Cannot parse the error code:', errorCode);
+    }
+
+    if (navigator.language.substring(0, 2).toLowerCase() !== 'en') {
+        ((s, p) => { // localize the page (details here - https://github.com/tarampampam/error-pages/tree/master/l10n)
+            s.src = 'https://cdn.jsdelivr.net/gh/tarampampam/error-pages@2/l10n/l10n.min.js'; // '../l10n/l10n.js';
+            s.async = s.defer = true;
+            s.addEventListener('load', () => p.removeChild(s));
+            p.appendChild(s);
+        })(document.createElement('script'), document.body);
+    }
+</script>
+</html>
--- a/templates/ghost.html
+++ b/templates/ghost.html
@ -9,7 +9,8 @@
    <meta name="robots" content="noindex, nofollow" />
    <title>{{ code }}: {{ message }}</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" />
-    <link href="https://fonts.googleapis.com/css?family=Open+Sans" rel="stylesheet" />
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;700&display=swap" rel="stylesheet">
    <style>
        html,body {background-color:#1a1a1a;color:#fff;font-family:'Open Sans',sans-serif;height:100vh;margin:0;font-size:0}
        .container {height:100vh;align-items:center;display:flex;justify-content:center;position:relative}
@ -33,7 +34,7 @@
 <body>
 <div class="container">
    <div class="wrap">
-        <svg class="ghost" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="127.433px" height="132.743px" viewBox="0 0 127.433 132.743" enable-background="new 0 0 127.433 132.743" xml:space="preserve">
+        <svg class="ghost" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" width="127.433px" height="132.743px" viewBox="0 0 127.433 132.743" xml:space="preserve">
          <path fill="#FFF6F4" d="M116.223,125.064c1.032-1.183,1.323-2.73,1.391-3.747V54.76c0,0-4.625-34.875-36.125-44.375 s-66,6.625-72.125,44l-0.781,63.219c0.062,4.197,1.105,6.177,1.808,7.006c1.94,1.811,5.408,3.465,10.099-0.6 c7.5-6.5,8.375-10,12.75-6.875s5.875,9.75,13.625,9.25s12.75-9,13.75-9.625s4.375-1.875,7,1.25s5.375,8.25,12.875,7.875 s12.625-8.375,12.625-8.375s2.25-3.875,7.25,0.375s7.625,9.75,14.375,8.125C114.739,126.01,115.412,125.902,116.223,125.064z"></path>
            <circle fill="#1a1a1a" cx="86.238" cy="57.885" r="6.667"></circle>
            <circle fill="#1a1a1a" cx="40.072" cy="57.885" r="6.667"></circle>
@ -46,41 +47,49 @@
            <path fill="#FCEFED" stroke="#FEEBE6" stroke-miterlimit="10" d="M116.279,55.814c-0.021-0.286-2.323-28.744-30.221-41.012 c-7.806-3.433-15.777-5.173-23.691-5.173c-16.889,0-30.283,7.783-37.187,15.067c-9.229,9.736-13.84,26.712-14.191,30.259 l-0.748,62.332c0.149,2.133,1.389,6.167,5.019,6.167c1.891,0,4.074-1.083,6.672-3.311c4.96-4.251,7.424-6.295,9.226-6.295 c1.339,0,2.712,1.213,5.102,3.762c4.121,4.396,7.461,6.355,10.833,6.355c2.713,0,5.311-1.296,7.942-3.962 c3.104-3.145,5.701-5.239,8.285-5.239c2.116,0,4.441,1.421,7.317,4.473c2.638,2.8,5.674,4.219,9.022,4.219 c4.835,0,8.991-2.959,11.27-5.728l0.086-0.104c1.809-2.2,3.237-3.938,5.312-3.938c2.208,0,5.271,1.942,9.359,5.936 c0.54,0.743,3.552,4.674,6.86,4.674c1.37,0,2.559-0.65,3.531-1.932l0.203-0.268L116.279,55.814z M114.281,121.405 c-0.526,0.599-1.096,0.891-1.734,0.891c-2.053,0-4.51-2.82-5.283-3.907l-0.116-0.136c-4.638-4.541-7.975-6.566-10.82-6.566 c-3.021,0-4.884,2.267-6.857,4.667l-0.086,0.104c-1.896,2.307-5.582,4.999-9.725,4.999c-2.775,0-5.322-1.208-7.567-3.59 c-3.325-3.528-6.03-5.102-8.772-5.102c-3.278,0-6.251,2.332-9.708,5.835c-2.236,2.265-4.368,3.366-6.518,3.366 c-2.772,0-5.664-1.765-9.374-5.723c-2.488-2.654-4.29-4.395-6.561-4.395c-2.515,0-5.045,2.077-10.527,6.777 c-2.727,2.337-4.426,2.828-5.37,2.828c-2.662,0-3.017-4.225-3.021-4.225l0.745-62.163c0.332-3.321,4.767-19.625,13.647-28.995 c3.893-4.106,10.387-8.632,18.602-11.504c-0.458,0.503-0.744,1.165-0.744,1.898c0,1.565,1.269,2.833,2.833,2.833 c1.564,0,2.833-1.269,2.833-2.833c0-1.355-0.954-2.485-2.226-2.764c4.419-1.285,9.269-2.074,14.437-2.074 c7.636,0,15.336,1.684,22.887,5.004c26.766,11.771,29.011,39.047,29.027,39.251V121.405z"></path>
        </svg>
        <p class="shadowFrame">
-            <svg version="1.1" class="shadow" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="61px" y="20px" width="122.436px" height="39.744px" viewBox="0 0 122.436 39.744" enable-background="new 0 0 122.436 39.744" xml:space="preserve">
+            <svg class="shadow" xmlns="http://www.w3.org/2000/svg" x="61px" y="20px" width="122.436px" height="39.744px" viewBox="0 0 122.436 39.744" xml:space="preserve">
            <ellipse fill="#262626" cx="61.128" cy="19.872" rx="49.25" ry="8.916"></ellipse>
          </svg>
        </p>
-        <h3>Error {{ code }}</h3>
-        <p class="description">{{ description }}</p>
+        <h3><span data-l10n>Error</span> {{ code }}</h3>
+        <p class="description" data-l10n>{{ description }}</p>
        {{ if show_details }}
        <div class="details">
            <table>
+                {{- if host }}<tr>
+                    <td class="name" data-l10n>Host</td>
+                    <td class="value">{{ host }}</td>
+                </tr>{{ end -}}
                {{- if original_uri }}<tr>
-                    <td class="name">Original URI</td>
+                    <td class="name" data-l10n>Original URI</td>
                    <td class="value">{{ original_uri }}</td>
                </tr>{{ end -}}
+                {{- if forwarded_for }}<tr>
+                    <td class="name" data-l10n>Forwarded for</td>
+                    <td class="value">{{ forwarded_for }}</td>
+                </tr>{{ end -}}
                {{- if namespace }}<tr>
-                    <td class="name">Namespace</td>
+                    <td class="name" data-l10n>Namespace</td>
                    <td class="value">{{ namespace }}</td>
                </tr>{{ end -}}
                {{- if ingress_name }}<tr>
-                    <td class="name">Ingress name</td>
+                    <td class="name" data-l10n>Ingress name</td>
                    <td class="value">{{ ingress_name }}</td>
                </tr>{{ end -}}
                {{- if service_name }}<tr>
-                    <td class="name">Service name</td>
+                    <td class="name" data-l10n>Service name</td>
                    <td class="value">{{ service_name }}</td>
                </tr>{{ end -}}
                {{- if service_port }}<tr>
-                    <td class="name">Service port</td>
+                    <td class="name" data-l10n>Service port</td>
                    <td class="value">{{ service_port }}</td>
                </tr>{{ end -}}
                {{- if request_id }}<tr>
-                    <td class="name">Request ID</td>
+                    <td class="name" data-l10n>Request ID</td>
                    <td class="value">{{ request_id }}</td>
                </tr>{{ end -}}
                <tr>
-                    <td class="name">Timestamp</td>
+                    <td class="name" data-l10n>Timestamp</td>
                    <td class="value">{{ now.Unix }}</td>
                </tr>
            </table>
@ -88,6 +97,16 @@
        {{ end }}
    </div>
 </div>
+<script>
+    if (navigator.language.substring(0, 2).toLowerCase() !== 'en') {
+        ((s, p) => { // localize the page (details here - https://github.com/tarampampam/error-pages/tree/master/l10n)
+            s.src = 'https://cdn.jsdelivr.net/gh/tarampampam/error-pages@2/l10n/l10n.min.js'; // '../l10n/l10n.js';
+            s.async = s.defer = true;
+            s.addEventListener('load', () => p.removeChild(s));
+            p.appendChild(s);
+        })(document.createElement('script'), document.body);
+    }
+</script>
 </body>
 <!--
    Error {{ code }}: {{ message }}
--- a/templates/hacker-terminal.html
+++ b/templates/hacker-terminal.html
@ -9,8 +9,8 @@
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="robots" content="noindex, nofollow" />
    <title>{{ message }}</title>
-    <link rel="dns-prefetch" href="//fonts.gstatic.com">
-    <link href="https://fonts.googleapis.com/css?family=Inconsolata" rel="stylesheet">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Inconsolata:wght@400;700&display=swap" rel="stylesheet">
    <style>
        /** Idea author: https://codepen.io/robinselmer */
        html, body {
@ -145,21 +145,33 @@
 <body>
 <div class="overlay"></div>
 <div class="terminal">
-    <h1>Error <span class="error_code">{{ code }}</span></h1>
-    <p class="output">{{ description }}.</p>
-    <p class="output">Good luck.</p>
+    <h1><span data-l10n>Error</span> <span class="error_code">{{ code }}</span></h1>
+    <p class="output" data-l10n>{{ description }}.</p>
+    <p class="output"><span data-l10n>Good luck</span>.</p>
    {{ if show_details }}
    <div class="details">
-        {{- if original_uri }}<p class="output small">Original URI: <code>{{ original_uri }}</code></p>{{ end -}}
-        {{- if namespace }}<p class="output small">Namespace: <code>{{ namespace }}</code></p>{{ end -}}
-        {{- if ingress_name }}<p class="output small">Ingress name: <code>{{ ingress_name }}</code></p>{{ end -}}
-        {{- if service_name }}<p class="output small">Service name: <code>{{ service_name }}</code></p>{{ end -}}
-        {{- if service_port }}<p class="output small">Service port: <code>{{ service_port }}</code></p>{{ end -}}
-        {{- if request_id }}<p class="output small">Request ID: <code>{{ request_id }}</code></p>{{ end -}}
-        <p class="output small">Timestamp: <code>{{ now.Unix }}</code></p>
+        {{- if host }}<p class="output small"><span data-l10n>Host</span>: <code>{{ host }}</code></p>{{ end -}}
+        {{- if original_uri }}<p class="output small"><span data-l10n>Original URI</span>: <code>{{ original_uri }}</code></p>{{ end -}}
+        {{- if forwarded_for }}<p class="output small"><span data-l10n>Forwarded for</span>: <code>{{ forwarded_for }}</code></p>{{ end -}}
+        {{- if namespace }}<p class="output small"><span data-l10n>Namespace</span>: <code>{{ namespace }}</code></p>{{ end -}}
+        {{- if ingress_name }}<p class="output small"><span data-l10n>Ingress name</span>: <code>{{ ingress_name }}</code></p>{{ end -}}
+        {{- if service_name }}<p class="output small"><span data-l10n>Service name</span>: <code>{{ service_name }}</code></p>{{ end -}}
+        {{- if service_port }}<p class="output small"><span data-l10n>Service port</span>: <code>{{ service_port }}</code></p>{{ end -}}
+        {{- if request_id }}<p class="output small"><span data-l10n>Request ID</span>: <code>{{ request_id }}</code></p>{{ end -}}
+        <p class="output small"><span data-l10n>Timestamp</span>: <code>{{ now.Unix }}</code></p>
    </div>
    {{ end }}
 </div>
+<script>
+    if (navigator.language.substring(0, 2).toLowerCase() !== 'en') {
+        ((s, p) => { // localize the page (details here - https://github.com/tarampampam/error-pages/tree/master/l10n)
+            s.src = 'https://cdn.jsdelivr.net/gh/tarampampam/error-pages@2/l10n/l10n.min.js'; // '../l10n/l10n.js';
+            s.async = s.defer = true;
+            s.addEventListener('load', () => p.removeChild(s));
+            p.appendChild(s);
+        })(document.createElement('script'), document.body);
+    }
+</script>
 </body>
 <!--
    Error {{ code }}: {{ message }}
--- a/templates/l7-dark.html
+++ b/templates/l7-dark.html
@ -33,39 +33,47 @@
            <div class="code">
                {{ code }}
            </div>
-            <div class="message">
+            <div class="message" data-l10n>
                {{ message }}
            </div>
        </div>
        {{ if show_details }}
        <div class="details">
            <table>
+                {{- if host }}<tr>
+                    <td class="name" data-l10n>Host</td>
+                    <td class="value">{{ host }}</td>
+                </tr>{{ end -}}
                {{- if original_uri }}<tr>
-                    <td class="name">Original URI</td>
+                    <td class="name" data-l10n>Original URI</td>
                    <td class="value">{{ original_uri }}</td>
                </tr>{{ end -}}
+                {{- if forwarded_for }}<tr>
+                    <td class="name" data-l10n>Forwarded for</td>
+                    <td class="value">{{ forwarded_for }}</td>
+                </tr>{{ end -}}
                {{- if namespace }}<tr>
-                    <td class="name">Namespace</td>
+                    <td class="name" data-l10n>Namespace</td>
                    <td class="value">{{ namespace }}</td>
                </tr>{{ end -}}
                {{- if ingress_name }}<tr>
-                    <td class="name">Ingress name</td>
+                    <td class="name" data-l10n>Ingress name</td>
                    <td class="value">{{ ingress_name }}</td>
                </tr>{{ end -}}
                {{- if service_name }}<tr>
-                    <td class="name">Service name</td>
+                    <td class="name" data-l10n>Service name</td>
                    <td class="value">{{ service_name }}</td>
                </tr>{{ end -}}
                {{- if service_port }}<tr>
-                    <td class="name">Service port</td>
+                    <td class="name" data-l10n>Service port</td>
                    <td class="value">{{ service_port }}</td>
                </tr>{{ end -}}
                {{- if request_id }}<tr>
-                    <td class="name">Request ID</td>
+                    <td class="name" data-l10n>Request ID</td>
                    <td class="value">{{ request_id }}</td>
                </tr>{{ end -}}
                <tr>
-                    <td class="name">Timestamp</td>
+                    <td class="name" data-l10n>Timestamp</td>
                    <td class="value">{{ now.Unix }}</td>
                </tr>
            </table>
@ -73,6 +81,16 @@
        {{ end }}
    </div>
 </div>
+<script>
+    if (navigator.language.substring(0, 2).toLowerCase() !== 'en') {
+        ((s, p) => { // localize the page (details here - https://github.com/tarampampam/error-pages/tree/master/l10n)
+            s.src = 'https://cdn.jsdelivr.net/gh/tarampampam/error-pages@2/l10n/l10n.min.js'; // '../l10n/l10n.js';
+            s.async = s.defer = true;
+            s.addEventListener('load', () => p.removeChild(s));
+            p.appendChild(s);
+        })(document.createElement('script'), document.body);
+    }
+</script>
 </body>
 <!--
    Error {{ code }}: {{ message }}
--- a/templates/l7-light.html
+++ b/templates/l7-light.html
@ -12,7 +12,9 @@
    <link rel="dns-prefetch" href="//fonts.gstatic.com">
    <link href="https://fonts.googleapis.com/css?family=Nunito" rel="stylesheet">
    <style>
-        html,body {background-color:#fff;color:#636b6f;font-family:'Nunito',sans-serif;font-weight:100;height:100vh;margin:0;font-size:0}
+        :root {--color-bg-primary:#fff;--color-text-primary:#636b6f;--color-text-secondary:#777}
+        @media (prefers-color-scheme: dark) {:root {--color-bg-primary:#222526;--color-text-primary:#fff;--color-text-secondary:#999}}
+        html,body {background-color:var(--color-bg-primary);color:var(--color-text-primary);font-family:'Nunito',sans-serif;font-weight:100;height:100vh;margin:0;font-size:0}
        .full-height {height:100vh}
        .flex-center {align-items:center;display:flex;justify-content:center}
        .position-ref {position:relative}
@ -20,7 +22,7 @@
        .message {font-size:18px;text-align:center;padding:10px}
        /* {{ if show_details }} */
        .details table {width:100%;border-collapse:collapse;box-sizing:border-box;margin-top:20px}
-        .details td {font-size:11px;color:#777}
+        .details td {font-size:11px;color:var(--color-text-secondary)}
        .details td.name {text-align:right;padding-right:.6em;width:50%;border-right:2px solid;border-color:#aaa}
        .details td.value {text-align:left;padding-left:.6em;font-family:'Lucida Console','Courier New',monospace}
        /* {{ end }} */
@ -33,39 +35,47 @@
            <div class="code">
                {{ code }}
            </div>
-            <div class="message">
+            <div class="message" data-l10n>
                {{ message }}
            </div>
        </div>
        {{ if show_details }}
        <div class="details">
            <table>
+                {{- if host }}<tr>
+                    <td class="name" data-l10n>Host</td>
+                    <td class="value">{{ host }}</td>
+                </tr>{{ end -}}
                {{- if original_uri }}<tr>
-                    <td class="name">Original URI</td>
+                    <td class="name" data-l10n>Original URI</td>
                    <td class="value">{{ original_uri }}</td>
                </tr>{{ end -}}
+                {{- if forwarded_for }}<tr>
+                    <td class="name" data-l10n>Forwarded for</td>
+                    <td class="value">{{ forwarded_for }}</td>
+                </tr>{{ end -}}
                {{- if namespace }}<tr>
-                    <td class="name">Namespace</td>
+                    <td class="name" data-l10n>Namespace</td>
                    <td class="value">{{ namespace }}</td>
                </tr>{{ end -}}
                {{- if ingress_name }}<tr>
-                    <td class="name">Ingress name</td>
+                    <td class="name" data-l10n>Ingress name</td>
                    <td class="value">{{ ingress_name }}</td>
                </tr>{{ end -}}
                {{- if service_name }}<tr>
-                    <td class="name">Service name</td>
+                    <td class="name" data-l10n>Service name</td>
                    <td class="value">{{ service_name }}</td>
                </tr>{{ end -}}
                {{- if service_port }}<tr>
-                    <td class="name">Service port</td>
+                    <td class="name" data-l10n>Service port</td>
                    <td class="value">{{ service_port }}</td>
                </tr>{{ end -}}
                {{- if request_id }}<tr>
-                    <td class="name">Request ID</td>
+                    <td class="name" data-l10n>Request ID</td>
                    <td class="value">{{ request_id }}</td>
                </tr>{{ end -}}
                <tr>
-                    <td class="name">Timestamp</td>
+                    <td class="name" data-l10n>Timestamp</td>
                    <td class="value">{{ now.Unix }}</td>
                </tr>
            </table>
@ -73,6 +83,16 @@
        {{ end }}
    </div>
 </div>
+<script>
+    if (navigator.language.substring(0, 2).toLowerCase() !== 'en') {
+        ((s, p) => { // localize the page (details here - https://github.com/tarampampam/error-pages/tree/master/l10n)
+            s.src = 'https://cdn.jsdelivr.net/gh/tarampampam/error-pages@2/l10n/l10n.min.js'; // '../l10n/l10n.js';
+            s.async = s.defer = true;
+            s.addEventListener('load', () => p.removeChild(s));
+            p.appendChild(s);
+        })(document.createElement('script'), document.body);
+    }
+</script>
 </body>
 <!--
    Error {{ code }}: {{ message }}
--- a/templates/lost-in-space.html
+++ b/templates/lost-in-space.html
@ -0,0 +1,396 @@
+<!DOCTYPE html>
+<!--
+    Error {{ code }}: {{ message }}
+    Description: {{ description }}
+-->
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="robots" content="noindex, nofollow"/>
+    <title>{{ message }}</title>
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <link rel="dns-prefetch" href="//fonts.gstatic.com">
+    <link href="https://fonts.googleapis.com/css?family=Nunito+Sans" rel="stylesheet">
+    <style>
+        /** Codepen: https://codepen.io/kdbkapsere/pen/oNXLbqQ */
+
+        :root {
+            --color-bg-primary: #fff;
+            --color-text-primary: #0e0620;
+
+            --color-ui-bg-primary: #0e0620;
+            --color-ui-bg-inverted: #fff;
+        }
+
+        @media (prefers-color-scheme: dark) {
+            :root {
+                --color-bg-primary: #212121;
+                --color-text-primary: #fafafa;
+
+                --color-ui-bg-primary: #fafafa;
+                --color-ui-bg-inverted: #212121;
+            }
+        }
+
+        html,
+        body {
+            height: 100%;
+            background-color: var(--color-bg-primary);
+            color: var(--color-text-primary);
+            font-family: 'Nunito Sans', sans-serif;
+            margin: 0;
+            padding: 0;
+            font-size: 0;
+        }
+
+        body {
+            align-items: center;
+            display: flex;
+            justify-content: center;
+            height: 100vh;
+        }
+
+        main {
+            width: 100%;
+            max-width: 1140px;
+            display: flex;
+            justify-content: space-between;
+        }
+
+        .picture, .content {
+            box-sizing: border-box;
+            width: 50%;
+        }
+
+        .content {
+            padding: 0 40px;
+        }
+
+        svg .dark {
+            stroke: var(--color-ui-bg-primary);
+        }
+
+        svg .fill-dark {
+            fill: var(--color-ui-bg-primary);
+        }
+
+        svg .fill-light {
+            fill: var(--color-ui-bg-inverted);
+        }
+
+        h1 {
+            font-size: 150px;
+            margin: 15px 0;
+            font-weight: bold;
+        }
+
+        h2 {
+            font-size: 32px;
+            font-weight: bold;
+        }
+
+        p {
+            font-size: 16px;
+        }
+
+        /* {{ if show_details }} */
+        .details {
+            list-style: none;
+            padding-left: 0;
+            opacity: .7;
+        }
+
+        .details li span {
+            font-size: 14px;
+            font-weight: bold;
+        }
+
+        .details li code {
+            font-size: 14px;
+            font-weight: normal;
+            padding-left: 7px;
+        }
+        /* {{ end }} */
+
+        @media screen and (max-width: 768px) {
+            main {
+                display: block;
+            }
+
+            .picture, .content {
+                width: 100%;
+                text-align: center;
+            }
+
+            .content {
+                padding: 0 20px;
+            }
+
+            .picture svg {
+                max-width: 60%;
+            }
+        }
+    </style>
+</head>
+<body>
+
+<main>
+    <div class="picture">
+        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 600">
+            <g>
+                <defs>
+                    <clipPath id="GlassClip">
+                        <path
+                            d="M380.857,346.164c-1.247,4.651-4.668,8.421-9.196,10.06c-9.332,3.377-26.2,7.817-42.301,3.5 s-28.485-16.599-34.877-24.192c-3.101-3.684-4.177-8.66-2.93-13.311l7.453-27.798c0.756-2.82,3.181-4.868,6.088-5.13 c6.755-0.61,20.546-0.608,41.785,5.087s33.181,12.591,38.725,16.498c2.387,1.682,3.461,4.668,2.705,7.488L380.857,346.164z"/>
+                    </clipPath>
+                    <clipPath id="cordClip">
+                        <rect width="800" height="600"/>
+                    </clipPath>
+                </defs>
+                <g id="planet">
+                    <circle fill="none" stroke-width="3" stroke-miterlimit="10" cx="572.859" cy="108.803"
+                            r="90.788" class="dark" />
+                    <circle id="craterBig" fill="none" stroke-width="3" stroke-miterlimit="10" cx="548.891"
+                            cy="62.319" r="13.074" class="dark"/>
+                    <circle id="craterSmall" fill="none" stroke-width="3" stroke-miterlimit="10" cx="591.743"
+                            cy="158.918" r="7.989" class="dark"/>
+                    <path id="ring" fill="none" stroke-width="3" stroke-linecap="round" stroke-miterlimit="10"
+                          class="dark"
+                          d="M476.562,101.461c-30.404,2.164-49.691,4.221-49.691,8.007c0,6.853,63.166,12.408,141.085,12.408s141.085-5.555,141.085-12.408c0-3.378-15.347-4.988-40.243-7.225"/>
+                    <path id="ringShadow" opacity="0.5" fill="none" class="dark" stroke-width="3"
+                          stroke-linecap="round" stroke-miterlimit="10"
+                          d="M483.985,127.43c23.462,1.531,52.515,2.436,83.972,2.436c36.069,0,68.978-1.19,93.922-3.149"/>
+                </g>
+                <g id="stars">
+                    <g id="starsBig">
+                        <g>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="518.07" y1="245.375" x2="518.07" y2="266.581"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="508.129" y1="255.978" x2="528.01" y2="255.978"/>
+                        </g>
+                        <g>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="154.55" y1="231.391" x2="154.55" y2="252.598"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="144.609" y1="241.995" x2="164.49" y2="241.995"/>
+                        </g>
+                        <g>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="320.135" y1="132.746" x2="320.135" y2="153.952"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="310.194" y1="143.349" x2="330.075" y2="143.349"/>
+                        </g>
+                        <g>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="200.67" y1="483.11" x2="200.67" y2="504.316"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="210.611" y1="493.713" x2="190.73" y2="493.713"/>
+                        </g>
+                    </g>
+                    <g id="starsSmall">
+                        <g>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="432.173" y1="380.52" x2="432.173" y2="391.83"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="426.871" y1="386.175" x2="437.474" y2="386.175"/>
+                        </g>
+                        <g>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="489.555" y1="299.765" x2="489.555" y2="308.124"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="485.636" y1="303.945" x2="493.473" y2="303.945"/>
+                        </g>
+                        <g>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="231.468" y1="291.009" x2="231.468" y2="299.369"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="227.55" y1="295.189" x2="235.387" y2="295.189"/>
+                        </g>
+                        <g>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="244.032" y1="547.539" x2="244.032" y2="555.898"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="247.95" y1="551.719" x2="240.113" y2="551.719"/>
+                        </g>
+                        <g>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="186.359" y1="406.967" x2="186.359" y2="415.326"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="190.277" y1="411.146" x2="182.44" y2="411.146"/>
+                        </g>
+                        <g>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="480.296" y1="406.967" x2="480.296" y2="415.326"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-miterlimit="10" x1="484.215" y1="411.146" x2="476.378" y2="411.146"/>
+                        </g>
+                    </g>
+                    <g id="circlesBig">
+                        <circle fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                stroke-miterlimit="10" cx="588.977" cy="255.978" r="7.952"/>
+                        <circle fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                stroke-miterlimit="10" cx="450.066" cy="320.259" r="7.952"/>
+                        <circle fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                stroke-miterlimit="10" cx="168.303" cy="353.753" r="7.952"/>
+                        <circle fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                stroke-miterlimit="10" cx="429.522" cy="201.185" r="7.952"/>
+                        <circle fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                stroke-miterlimit="10" cx="200.67" cy="176.313" r="7.952"/>
+                        <circle fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                stroke-miterlimit="10" cx="133.343" cy="477.014" r="7.952"/>
+                        <circle fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                stroke-miterlimit="10" cx="283.521" cy="568.033" r="7.952"/>
+                        <circle fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                stroke-miterlimit="10" cx="413.618" cy="482.387" r="7.952"/>
+                    </g>
+                    <g id="circlesSmall">
+                        <circle class="fill-dark" cx="549.879" cy="296.402" r="2.651"/>
+                        <circle class="fill-dark" cx="253.29" cy="229.24" r="2.651"/>
+                        <circle class="fill-dark" cx="434.824" cy="263.931" r="2.651"/>
+                        <circle class="fill-dark" cx="183.708" cy="544.176" r="2.651"/>
+                        <circle class="fill-dark" cx="382.515" cy="530.923" r="2.651"/>
+                        <circle class="fill-dark" cx="130.693" cy="305.608" r="2.651"/>
+                        <circle class="fill-dark" cx="480.296" cy="477.014" r="2.651"/>
+                    </g>
+                </g>
+                <g id="spaceman" clip-path="url(cordClip)">
+                    <path id="cord" fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                          stroke-linejoin="round" stroke-miterlimit="10"
+                          d="M273.813,410.969c0,0-54.527,39.501-115.34,38.218c-2.28-0.048-4.926-0.241-7.841-0.548c-68.038-7.178-134.288-43.963-167.33-103.87c-0.908-1.646-1.793-3.3-2.654-4.964c-18.395-35.511-37.259-83.385-32.075-118.817"/>
+                    <path id="backpack" class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                          stroke-linejoin="round" stroke-miterlimit="10"
+                          d="M338.164,454.689l-64.726-17.353c-11.086-2.972-17.664-14.369-14.692-25.455l15.694-58.537c3.889-14.504,18.799-23.11,33.303-19.221l52.349,14.035c14.504,3.889,23.11,18.799,19.221,33.303l-15.694,58.537C360.647,451.083,349.251,457.661,338.164,454.689z"/>
+                    <g id="antenna">
+                        <line class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                              stroke-linejoin="round" stroke-miterlimit="10" x1="323.396" y1="236.625"
+                              x2="295.285" y2="353.753"/>
+                        <circle class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                                stroke-linejoin="round" stroke-miterlimit="10" cx="323.666" cy="235.617"
+                                r="6.375"/>
+                    </g>
+                    <g id="armR">
+                        <path class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                              stroke-linejoin="round" stroke-miterlimit="10"
+                              d="M360.633,363.039c1.352,1.061,4.91,5.056,5.824,6.634l27.874,47.634c3.855,6.649,1.59,15.164-5.059,19.02l0,0c-6.649,3.855-15.164,1.59-19.02-5.059l-5.603-9.663"/>
+                        <path class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                              stroke-linejoin="round" stroke-miterlimit="10"
+                              d="M388.762,434.677c5.234-3.039,7.731-8.966,6.678-14.594c2.344,1.343,4.383,3.289,5.837,5.793c4.411,7.596,1.829,17.33-5.767,21.741c-7.596,4.411-17.33,1.829-21.741-5.767c-1.754-3.021-2.817-5.818-2.484-9.046C375.625,437.355,383.087,437.973,388.762,434.677z"/>
+                    </g>
+                    <g id="armL">
+                        <path class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                              stroke-linejoin="round" stroke-miterlimit="10"
+                              d="M301.301,347.66c-1.702,0.242-5.91,1.627-7.492,2.536l-47.965,27.301c-6.664,3.829-8.963,12.335-5.134,18.999h0c3.829,6.664,12.335,8.963,18.999,5.134l9.685-5.564"/>
+                        <path class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                              stroke-linejoin="round" stroke-miterlimit="10"
+                              d="M241.978,395.324c-3.012-5.25-2.209-11.631,1.518-15.977c-2.701-0.009-5.44,0.656-7.952,2.096c-7.619,4.371-10.253,14.09-5.883,21.71c4.371,7.619,14.09,10.253,21.709,5.883c3.03-1.738,5.35-3.628,6.676-6.59C252.013,404.214,245.243,401.017,241.978,395.324z"/>
+                    </g>
+                    <g id="body">
+                        <path class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                              stroke-linejoin="round" stroke-miterlimit="10"
+                              d="M353.351,365.387c-7.948,1.263-16.249,0.929-24.48-1.278c-8.232-2.207-15.586-6.07-21.836-11.14c-17.004,4.207-31.269,17.289-36.128,35.411l-1.374,5.123c-7.112,26.525,8.617,53.791,35.13,60.899l0,0c26.513,7.108,53.771-8.632,60.883-35.158l1.374-5.123C371.778,395.999,365.971,377.536,353.351,365.387z"/>
+                        <path fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                              stroke-linejoin="round" stroke-miterlimit="10"
+                              d="M269.678,394.912L269.678,394.912c26.3,20.643,59.654,29.585,93.106,25.724l2.419-0.114"/>
+                    </g>
+                    <g id="legs">
+                        <g id="legR">
+                            <path class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                                  stroke-linejoin="round" stroke-miterlimit="10"
+                                  d="M312.957,456.734l-14.315,53.395c-1.896,7.07,2.299,14.338,9.37,16.234l0,0c7.07,1.896,14.338-2.299,16.234-9.37l17.838-66.534C333.451,455.886,323.526,457.387,312.957,456.734z"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-linejoin="round" stroke-miterlimit="10" x1="304.883" y1="486.849"
+                                  x2="330.487" y2="493.713"/>
+                        </g>
+                        <g id="legL">
+                            <path class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                                  stroke-linejoin="round" stroke-miterlimit="10"
+                                  d="M296.315,452.273L282,505.667c-1.896,7.07-9.164,11.265-16.234,9.37l0,0c-7.07-1.896-11.265-9.164-9.37-16.234l17.838-66.534C278.993,441.286,286.836,447.55,296.315,452.273z"/>
+                            <line fill="none" class="dark" stroke-width="3" stroke-linecap="round"
+                                  stroke-linejoin="round" stroke-miterlimit="10" x1="262.638" y1="475.522"
+                                  x2="288.241" y2="482.387"/>
+                        </g>
+                    </g>
+                    <g id="head">
+                        <ellipse transform="matrix(0.259 -0.9659 0.9659 0.259 -51.5445 563.2371)"
+                                 class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                                 stroke-linejoin="round" stroke-miterlimit="10" cx="341.295" cy="315.211"
+                                 rx="61.961" ry="60.305"/>
+                        <path id="headStripe" fill="none" class="dark" stroke-width="3"
+                              stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10"
+                              d="M330.868,261.338c-7.929,1.72-15.381,5.246-21.799,10.246"/>
+                        <path class="dark fill-light" stroke-width="3" stroke-linecap="round"
+                              stroke-linejoin="round" stroke-miterlimit="10"
+                              d="M380.857,346.164c-1.247,4.651-4.668,8.421-9.196,10.06c-9.332,3.377-26.2,7.817-42.301,3.5s-28.485-16.599-34.877-24.192c-3.101-3.684-4.177-8.66-2.93-13.311l7.453-27.798c0.756-2.82,3.181-4.868,6.088-5.13c6.755-0.61,20.546-0.608,41.785,5.087s33.181,12.591,38.725,16.498c2.387,1.682,3.461,4.668,2.705,7.488L380.857,346.164z"/>
+                        <g clip-path="url(#GlassClip)">
+                            <polygon id="glassShine" fill="none" class="dark" stroke-width="3"
+                                     stroke-miterlimit="10"
+                                     points="278.436,375.599 383.003,264.076 364.393,251.618 264.807,364.928 "/>
+                        </g>
+                    </g>
+                </g>
+            </g>
+        </svg>
+    </div>
+    <div class="content">
+        <h1>{{ code }}</h1>
+        <h2><span data-l10n>UH OH</span>! <span data-l10n>{{ message }}</span></h2>
+        <p data-l10n>{{ description }}</p>
+
+        {{ if show_details }}
+        <ul class="details">
+            {{- if host }}<li><span><span data-l10n>Host</span>:</span> <code>{{ host }}</code></li>{{ end -}}
+            {{- if original_uri }}<li><span><span data-l10n>Original URI</span>:</span> <code>{{ original_uri }}</code></li>{{ end -}}
+            {{- if forwarded_for }}<li><span><span data-l10n>Forwarded for</span>:</span> <code>{{ forwarded_for }}</code></li>{{ end -}}
+            {{- if namespace }}<li><span><span data-l10n>Namespace</span>:</span> <code>{{ namespace }}</code></li>{{ end -}}
+            {{- if ingress_name }}<li><span><span data-l10n>Ingress name</span>:</span> <code>{{ ingress_name }}</code></li>{{ end -}}
+            {{- if service_name }}<li><span><span data-l10n>Service name</span>:</span> <code>{{ service_name }}</code></li>{{ end -}}
+            {{- if service_port }}<li><span><span data-l10n>Service port</span>:</span> <code>{{ service_port }}</code></li>{{ end -}}
+            {{- if request_id }}<li><span><span data-l10n>Request ID</span>:</span> <code>{{ request_id }}</code></li>{{ end -}}
+            <li><span><span data-l10n>Timestamp</span>:</span> <code>{{ now.Unix }}</code></li>
+        </ul>
+        {{ end }}
+    </div>
+</main>
+
+<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.9.1/gsap.min.js"
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+        crossorigin="anonymous" referrerpolicy="no-referrer"></script>
+
+<script>
+    /** @var {object} gsap is a library for building high-performance animations */
+
+    if (typeof gsap === 'object') {
+        gsap.set("svg", {visibility: "visible"});
+        gsap.to("#headStripe", {y: 0.5, rotation: 1, yoyo: true, repeat: -1, ease: "sine.inOut", duration: 1});
+        gsap.to("#spaceman", {y: 0.5, rotation: 1, yoyo: true, repeat: -1, ease: "sine.inOut", duration: 1});
+        gsap.to("#craterSmall", {x: -3, yoyo: true, repeat: -1, duration: 1, ease: "sine.inOut"});
+        gsap.to("#craterBig", {x: 3, yoyo: true, repeat: -1, duration: 1, ease: "sine.inOut"});
+        gsap.to("#planet", {rotation: -2, yoyo: true, repeat: -1, duration: 1, ease: "sine.inOut", transformOrigin: "50% 50%"});
+        gsap.to("#starsBig g", {rotation: "random(-30,30)", transformOrigin: "50% 50%", yoyo: true, repeat: -1, ease: "sine.inOut"});
+        gsap.fromTo("#starsSmall g", {scale: 0, transformOrigin: "50% 50%"}, {scale: 1, transformOrigin: "50% 50%", yoyo: true, repeat: -1, stagger: 0.1});
+        gsap.to("#circlesSmall circle", {y: -4, yoyo: true, duration: 1, ease: "sine.inOut", repeat: -1});
+        gsap.to("#circlesBig circle", {y: -2, yoyo: true, duration: 1, ease: "sine.inOut", repeat: -1});
+        gsap.set("#glassShine", {x: -68});
+        gsap.to("#glassShine", {x: 80, duration: 2, rotation: -30, ease: "expo.inOut", transformOrigin: "50% 50%", repeat: -1, repeatDelay: 8, delay: 2});
+    } else {
+        console.warn('gsap library is not initialized (network error?)')
+    }
+
+    if (navigator.language.substring(0, 2).toLowerCase() !== 'en') {
+        ((s, p) => { // localize the page (details here - https://github.com/tarampampam/error-pages/tree/master/l10n)
+            s.src = 'https://cdn.jsdelivr.net/gh/tarampampam/error-pages@2/l10n/l10n.min.js'; // '../l10n/l10n.js';
+            s.async = s.defer = true;
+            s.addEventListener('load', () => p.removeChild(s));
+            p.appendChild(s);
+        })(document.createElement('script'), document.body);
+    }
+</script>
+
+</body>
+<!--
+    Error {{ code }}: {{ message }}
+    Description: {{ description }}
+-->
+</html>
--- a/templates/noise.html
+++ b/templates/noise.html
@ -3,7 +3,9 @@
    Error {{ code }}: {{ message }}
    Description: {{ description }}
 {{ if show_details }}
+    {{ if host }}Host: {{ host }}{{ end }}
    {{ if original_uri }}Original URI: {{ original_uri }}{{ end }}
+    {{ if forwarded_for }}Forwarded for: {{ forwarded_for }}{{ end }}
    {{ if namespace }}Namespace: {{ namespace }}{{ end }}
    {{ if ingress_name }}Ingress name: {{ ingress_name }}{{ end }}
    {{ if service_name }}Service name: {{ service_name }}{{ end }}
@ -128,7 +130,7 @@
 <div class="container-center">
    <div>
        <h1>{{ code }}</h1>
-        <h2>{{ description }}</h2>
+        <h2 data-l10n>{{ description }}</h2>
    </div>
 </div>

@ -172,6 +174,15 @@
    window.addEventListener('beforeunload', function (/** @param BeforeUnloadEvent event */ event) {
        window.clearInterval(flickerInterval);
    });
+
+    if (navigator.language.substring(0, 2).toLowerCase() !== 'en') {
+        ((s, p) => { // localize the page (details here - https://github.com/tarampampam/error-pages/tree/master/l10n)
+            s.src = 'https://cdn.jsdelivr.net/gh/tarampampam/error-pages@2/l10n/l10n.min.js'; // '../l10n/l10n.js';
+            s.async = s.defer = true;
+            s.addEventListener('load', () => p.removeChild(s));
+            p.appendChild(s);
+        })(document.createElement('script'), document.body);
+    }
 </script>
 </body>
 <!--
--- a/templates/readme.md
+++ b/templates/readme.md
@ -1 +1,37 @@
-# TODO: Write docs
+# Templates
+
+Creating templates is a very simple operation, even for those who know nothing at all about [Go Template](https://pkg.go.dev/text/template). All you should know is:
+
+- The template should be one page. Without additional `css` or `js` files (but you can load them from the CDN or another GitHub repositories using [jsdelivr.com](https://www.jsdelivr.com/), for example)
+- Don't forget to include `<meta name="robots" content="noindex, nofollow" />` tag in the header
+- You can use a special "placeholders" (wrapped in `{{` and `}}`) for the rendering error code, message and others (see details below)
+
+## Supported signatures
+
+### Error page & request data
+
+| Signature                           | Description                                                   | Example                                      |
+|-------------------------------------|---------------------------------------------------------------|----------------------------------------------|
+| `{{ code }}`                        | Error page code                                               | `404`                                        |
+| `{{ message }}`                     | Error code message                                            | `Not found`                                  |
+| `{{ description }}`                 | Error code description                                        | `The server can not find the requested page` |
+| `{{ original_uri }}`                | `X-Original-URI` header value                                 | `/foo1/bar2`                                 |
+| `{{ namespace }}`                   | `X-Namespace` header value                                    | `foo`                                        |
+| `{{ ingress_name }}`                | `X-Ingress-Name` header value                                 | `bar`                                        |
+| `{{ service_name }}`                | `X-Service-Name` header value                                 | `baz`                                        |
+| `{{ service_port }}`                | `X-Service-Port` header value                                 | `8080`                                       |
+| `{{ request_id }}`                  | `X-Request-ID` header value                                   | `12AB34CD56EF78`                             |
+| `{{ forwarded_for }}`               | `X-Forwarded-For` header value                                | `203.0.113.195, 70.41.3.18`                  |
+| `{{ host }}`                        | `Host` header value                                           | `example.com`                                |
+| `{{ now.Unix }}`                    | Current timestamp (e.g. in Unix format)                       | `1643621927`                                 |
+| `{{ hostname }}`                    | OS hostname                                                   | `ab12cd34ef56`                               |
+| `{{ version }}`                     | Application version                                           | `2.5.0`                                      |
+| `{{ if show_details }}...{{ end }}` | Logical operator (server started with "show details" option?) |                                              |
+| `{{ if hide_details }}...{{ end }}` | Same as above, but inverted                                   |                                              |
+
+### Modifiers
+
+| Signature                          | Description                    | Example                             |
+|------------------------------------|--------------------------------|-------------------------------------|
+| <code>{{ ... &#124; json }}</code> | Convert value into json-string | <code>{{ code &#124; json }}</code> |
+| <code>{{ ... &#124; int }}</code>  | Convert value into integer     | <code>{{ code &#124; int }}</code>  |
--- a/templates/shuffle.html
+++ b/templates/shuffle.html
@ -72,48 +72,60 @@
 <body>
 <div class="flex-center full-height">
    <div>
-        <span id="error_text">{{ code }}: {{ message }}</span>
+        <span id="error_text">{{ code }}: <span data-l10n>{{ message }}</span></span>
        {{ if show_details }}
        <div class="hidden" id="details">
            <table>
+                {{- if host }}
+                <tr>
+                    <td class="name"><span data-l10n>Host</span>:</td>
+                    <td class="value">{{ host }}</td>
+                </tr>
+                {{ end -}}
                {{- if original_uri }}
                <tr>
-                    <td class="name">Original URI:</td>
+                    <td class="name"><span data-l10n>Original URI</span>:</td>
                    <td class="value">{{ original_uri }}</td>
                </tr>
                {{ end -}}
+                {{- if forwarded_for }}
+                <tr>
+                    <td class="name"><span data-l10n>Forwarded for</span>:</td>
+                    <td class="value">{{ forwarded_for }}</td>
+                </tr>
+                {{ end -}}
                {{- if namespace }}
                <tr>
-                    <td class="name">Namespace:</td>
+                    <td class="name"><span data-l10n>Namespace</span>:</td>
                    <td class="value">{{ namespace }}</td>
                </tr>
                {{ end -}}
                {{- if ingress_name }}
                <tr>
-                    <td class="name">Ingress name:</td>
+                    <td class="name"><span data-l10n>Ingress name</span>:</td>
                    <td class="value">{{ ingress_name }}</td>
                </tr>
                {{ end -}}
                {{- if service_name }}
                <tr>
-                    <td class="name">Service name:</td>
+                    <td class="name"><span data-l10n>Service name</span>:</td>
                    <td class="value">{{ service_name }}</td>
                </tr>
                {{ end -}}
                {{- if service_port }}
                <tr>
-                    <td class="name">Service port:</td>
+                    <td class="name"><span data-l10n>Service port</span>:</td>
                    <td class="value">{{ service_port }}</td>
                </tr>
                {{ end -}}
                {{- if request_id }}
                <tr>
-                    <td class="name">Request ID:</td>
+                    <td class="name"><span data-l10n>Request ID</span>:</td>
                    <td class="value">{{ request_id }}</td>
                </tr>
                {{ end -}}
                <tr>
-                    <td class="name">Timestamp:</td>
+                    <td class="name"><span data-l10n>Timestamp</span>:</td>
                    <td class="value">{{ now.Unix }}</td>
                </tr>
            </table>
@ -126,9 +138,8 @@
    'use strict';

    const $errorText = document.getElementById('error_text'),
-        text = $errorText.innerText,
        characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890-=+<>,./?[{()}]!@#$%^&*~`\|'.split('');
-    let progress = 0;
+    let text = $errorText.innerText, progress = 0;

    const scrambleInterval = window.setInterval(function () {
        let newText = text;
@ -160,6 +171,15 @@
            }
        }, 70);
    }, 350);
+
+    if (navigator.language.substring(0, 2).toLowerCase() !== 'en') {
+        ((s, p) => { // localize the page (details here - https://github.com/tarampampam/error-pages/tree/master/l10n)
+            s.src = 'https://cdn.jsdelivr.net/gh/tarampampam/error-pages@2/l10n/l10n.min.js'; // '../l10n/l10n.js';
+            s.async = s.defer = true;
+            s.addEventListener('load', () => {p.removeChild(s); text = $errorText.innerText});
+            p.appendChild(s);
+        })(document.createElement('script'), document.body);
+    }
 </script>
 </body>
 <!--
--- a/test/hurl/code_502_json.hurl
+++ b/test/hurl/code_502_json.hurl
@ -7,6 +7,8 @@ X-Ingress-Name: baz
 X-Service-Name: aaa
 X-Service-Port: bbb
 X-Request-ID: ccc
+X-Forwarded-For: ddd
+Host: eee

 HTTP/* 200

@ -23,6 +25,8 @@ jsonpath "$.details.ingress_name" == "baz"
 jsonpath "$.details.service_name" == "aaa"
 jsonpath "$.details.service_port" == "bbb"
 jsonpath "$.details.request_id" == "ccc"
+jsonpath "$.details.forwarded_for" == "ddd"
+jsonpath "$.details.host" == "eee"
 jsonpath "$.details.timestamp" isInteger

 # X-Format in the action
--- a/test/hurl/code_502_xml.hurl
+++ b/test/hurl/code_502_xml.hurl
@ -7,6 +7,8 @@ X-Ingress-Name: baz
 X-Service-Name: aaa
 X-Service-Port: bbb
 X-Request-ID: ccc
+X-Forwarded-For: ddd
+Host: eee

 HTTP/* 200

@ -22,6 +24,8 @@ xpath "string(//error/details/ingressName)" == "baz"
 xpath "string(//error/details/serviceName)" == "aaa"
 xpath "string(//error/details/servicePort)" == "bbb"
 xpath "string(//error/details/requestID)" == "ccc"
+xpath "string(//error/details/forwardedFor)" == "ddd"
+xpath "string(//error/details/host)" == "eee"
 xpath "string(//error/details/timestamp)" exists

 # X-Format in the action
--- a/test/hurl/proxy_headers.hurl
+++ b/test/hurl/proxy_headers.hurl
@ -0,0 +1,13 @@
+GET http://{{ host }}:{{ port }}/502.html
+X-Foo: foo
+bar: BAR
+Baz_blah: baz Baz
+NonEx: skip
+
+HTTP/* 200
+
+[Asserts]
+header "X-Foo" == "foo"
+header "Bar" == "BAR"
+header "Baz_blah" == "baz Baz"
+header "NonEx" not exists
--- a/test/wrk/request.lua
+++ b/test/wrk/request.lua
@ -0,0 +1,9 @@
+local formats = { 'application/json', 'application/xml', 'text/html', 'text/plain' }
+
+request = function()
+    wrk.headers["X-Namespace"] = "NAMESPACE_" .. tostring(math.random(0, 99999999))
+    wrk.headers["X-Request-ID"] = "REQ_ID_" .. tostring(math.random(0, 99999999))
+    wrk.headers["Content-Type"] = formats[ math.random( 0, #formats - 1 ) ]
+
+    return wrk.format("GET", "/500.html?rnd=" .. tostring(math.random(0, 99999999)), nil, nil)
+end
Author	SHA1	Message	Date
Paramtamtam	dc51e3192c	Update CHANGELOG.md	2022-03-24 00:32:40 +05:00
Paramtamtam	45ca69432b	Translated in 🇺🇦 and 🇷🇺 languages (#80 )	2022-03-24 00:31:34 +05:00
Paramtamtam	f5f572a4d3	small template fixes	2022-03-23 12:30:33 +05:00
Paramtamtam	2d418ecffa	Changelog updated	2022-03-22 23:46:01 +05:00
Paramtamtam	c6b3342361	Readme file updated	2022-03-22 23:44:31 +05:00
Paramtamtam	3614f0503f	New template `connection` added (#79 )	2022-03-22 23:31:33 +05:00
Paramtamtam	a2ee92acc4	v2.8.1	2022-03-21 13:23:21 +05:00
Paramtamtam	93dddd75d9	Update README.md	2022-03-20 23:31:45 +05:00
Paramtamtam	c17587ca6b	Changelog updated	2022-03-20 12:44:27 +05:00
Paramtamtam	d7d5245d07	Template `app-down` added (#74 )	2022-03-20 11:32:40 +05:00
dependabot[bot]	6c0885a5d3	Bump golang from 1.17.7-alpine to 1.18.0-alpine (#76 )	2022-03-19 11:33:30 +00:00
dependabot[bot]	4b83ce7d09	Bump github.com/valyala/fasthttp from 1.33.0 to 1.34.0 (#77 )	2022-03-19 11:33:19 +00:00
dependabot[bot]	d6cebc27ab	Bump github.com/spf13/cobra from 1.3.0 to 1.4.0 (#78 )	2022-03-19 11:28:55 +00:00
dependabot[bot]	2bcbd4ba41	Bump github.com/stretchr/testify from 1.7.0 to 1.7.1 (#75 )	2022-03-19 11:25:36 +00:00
Paramtamtam	edc05ec6d2	an attempt to fix the ci	2022-03-04 10:49:40 +05:00
dependabot[bot]	94b6af6d53	Bump golangci/golangci-lint-action from 2 to 3.1.0 (#72 )	2022-03-04 05:43:59 +00:00
dependabot[bot]	8d24125eee	Bump golang from 1.17.6-alpine to 1.17.7-alpine (#69 )	2022-03-04 05:25:18 +00:00
dependabot[bot]	97fc3b8693	Bump actions/setup-node from 2 to 3 (#73 )	2022-03-02 03:41:56 +00:00
dependabot[bot]	ac1c19df28	Bump go.uber.org/zap from 1.20.0 to 1.21.0 (#70 )	2022-03-02 03:39:14 +00:00
dependabot[bot]	b7f82e4635	Bump actions/checkout from 2 to 3 (#71 )	2022-03-02 03:38:28 +00:00
Paramtamtam	62493411b4	Update README.md	2022-02-24 09:47:53 +05:00
Paramtamtam	0e20e39cd2	Update README.md	2022-02-24 02:35:49 +05:00
Paramtamtam	4bdbb882b5	Update README.md	2022-02-24 02:34:31 +05:00
Paramtamtam	4b2a792148	Update README.md	2022-02-24 02:31:44 +05:00
Paramtamtam	1d41cf190b	Update CHANGELOG.md	2022-02-23 11:14:57 +05:00
Paramtamtam	e857c0309b	proxy headers (#67 )	2022-02-23 11:09:54 +05:00
Paramtamtam	06aff4ecb3	Update README.md	2022-02-22 21:20:32 +05:00
Paramtamtam	3145bdfa00	fix the theme (auto-dark mode)	2022-02-22 20:58:26 +05:00
Paramtamtam	178e6b2d9b	New template `lost-in-space` (#68 )	2022-02-22 20:48:55 +05:00
Paramtamtam	7a3dc917a2	Readme file updated	2022-02-22 13:16:47 +05:00
Paramtamtam	8a14836bd1	migrate to the another docker scanning action (#66 )	2022-02-21 16:48:35 +05:00
Paramtamtam	ae2bf27463	issue templates update	2022-02-21 16:08:07 +05:00
Paramtamtam	c53a87b816	Update README.md	2022-02-14 15:45:34 +05:00
Paramtamtam	8463ecf00d	Update README.md	2022-02-08 11:03:23 +05:00
dependabot[bot]	1d7596b3df	Bump github.com/prometheus/client_golang from 1.12.0 to 1.12.1 (#63 )	2022-02-02 04:09:32 +00:00
dependabot[bot]	251e0a01cf	Bump github.com/fasthttp/router from 1.4.5 to 1.4.6 (#64 )	2022-02-02 04:08:52 +00:00
Paramtamtam	22d3e3485e	Changelog updated	2022-02-01 20:12:11 +05:00
Paramtamtam	375272b561	Change themes in random order once a day/hour (#62 )	2022-02-01 19:39:50 +05:00
Paramtamtam	7e7f956fae	template docs added	2022-01-31 14:45:12 +05:00
Paramtamtam	d672112cc2	Changelog updated	2022-01-31 13:53:06 +05:00
Paramtamtam	32b92611a7	small fixes	2022-01-31 13:45:22 +05:00
Paramtamtam	cc6cbc7d47	Template rendering performance issue has been fixed (#60 )	2022-01-31 13:43:40 +05:00
Paramtamtam	690a405994	fix the template	2022-01-31 10:53:51 +05:00
Paramtamtam	f72c2b85fd	Changes after merging	2022-01-31 10:46:51 +05:00
Florian Michel	42523ae9d9	Adds "Host" and "X-Forwarded-For" header options (#61 )	2022-01-31 10:40:58 +05:00
dependabot[bot]	da2dc5c63a	Bump github.com/fasthttp/router from 1.4.4 to 1.4.5 (#59 )	2022-01-29 07:50:34 +00:00
dependabot[bot]	a0a1d3caca	Bump go.uber.org/zap from 1.19.1 to 1.20.0 (#58 )	2022-01-29 07:50:31 +00:00
dependabot[bot]	915e810088	Bump golang from 1.17.5-alpine to 1.17.6-alpine (#57 )	2022-01-29 07:50:17 +00:00
dependabot[bot]	00c139b525	Bump github.com/valyala/fasthttp from 1.31.0 to 1.33.0 (#56 )	2022-01-29 07:46:47 +00:00
Paramtamtam	eca99eb569	Readme file updated	2022-01-29 01:14:06 +05:00
Paramtamtam	dfaeea7483	Readme file updated	2022-01-29 01:12:36 +05:00
Paramtamtam	f71b07f647	fix typos	2022-01-29 01:11:44 +05:00