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add exception in documentation with nginx and cloudflare

See original GitHub issue

Is there an existing issue for this?

I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

In the nginx configuration documentation you should mention cloudflare + nginx configuration.

https://learn.microsoft.com/en-us/aspnet/core/host-and-deploy/linux-nginx?view=aspnetcore-7.0#configure-nginx

I had a problem where the blazor connection looped because there was a problem with the web socket connection.

This code solved my problem:

		proxy_set_header X-NginX-Proxy true; 
		proxy_set_header Upgrade $http_upgrade; 
		proxy_set_header Connection "upgrade";
		proxy_ssl_session_reuse off; 
		proxy_cache_bypass $http_upgrade;

and more specifically

proxy_set_header Connection "upgrade";

without it, such magic works and it kept throwing me the error 500 + ssl handshake failed

https://gyazo.com/6bae286bb75d2e9e4bef84f8057a0c48

My config:

	listen                    443 ssl http2;
	listen                    [::]:443 ssl http2;
	server_name               ****
    ssl_certificate           /etc/ssl/***;
    ssl_certificate_key       /etc/ssl/***;
	ssl_session_timeout       1d;
	ssl_protocols             TLSv1.2 TLSv1.3;
	ssl_prefer_server_ciphers off;
	ssl_ciphers               ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
	ssl_session_cache         shared:SSL:10m;
	ssl_session_tickets       off;
	ssl_stapling              off;

	add_header X-Frame-Options DENY;
	add_header X-Content-Type-Options nosniff;

    location / {
		proxy_redirect          off;
		proxy_set_header        Host $host;
		proxy_set_header        X-Real-IP $remote_addr;
		proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
		proxy_set_header        X-Forwarded-Proto $scheme;
		client_max_body_size    32M;
		client_body_buffer_size 128k;
		proxy_connect_timeout   90;
		proxy_send_timeout      90;
		proxy_read_timeout      90;
		proxy_buffers           32 4k;
		
		proxy_set_header X-NginX-Proxy true; 
		proxy_set_header Upgrade $http_upgrade; 
		proxy_set_header Connection "upgrade";
		proxy_ssl_session_reuse off; 
		proxy_cache_bypass $http_upgrade;
		
        proxy_pass http://localhost:5001/;
        proxy_http_version 1.1;
    }