nginx-proxy-manager/backend/templates/_location.conf

  location {{ path }} {

		{% if static == 0 or static == false %}
			proxy_set_header Host $host;
			proxy_set_header X-Forwarded-Scheme $scheme;
			proxy_set_header X-Forwarded-Proto  $scheme;
			proxy_set_header X-Forwarded-For    $remote_addr;
			proxy_pass       {{ forward_scheme }}://{{ forward_host }}:{{ forward_port }}{{ forward_path }};
		{% else %}
			alias {{ root_dir }}/$1;
			try_files $uri /{{ index_file }} =200;
		{% endif %}  
		
    {{ advanced_config }}
  }