nginx-proxy-manager/backend/internal/api/middleware/access_control.go

package middleware

import (
	"net/http"
)

// AccessControl sets http headers for responses
func AccessControl(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Access-Control-Allow-Origin", "*")
		next.ServeHTTP(w, r)
	})
}