Websocket connection issue

[amitpatelx]

Deployment Setup

• Ubuntu 20.04.1 LTS
• Puma and NGINX using Capistrano

.env

FRONTEND_URL=https://sellerioapp.com

NGINX

location /cable {
    proxy_pass http://app;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_set_header Host $host;
}

2.7.2 :001 > [ENV['FRONTEND_URL'], %r{https?://#{URI.parse(ENV['FRONTEND_URL']).host}(:[0-9]+)?}]
 => ["https://sellerioapp.com", /https?:\/\/sellerioapp.com(:[0-9]+)?/] 

I tried with non-secure frontend url as well but same issue.

[sojan-official]

@amitpatelx could you see get the logs and see whether the WebSocket upgrade requests are reaching the chatwoot servers ? or whether they get terminated at the Nginx side itself.

[amitpatelx]

Thanks @sojan-official for the pointer

Actually the request was being redirected after upgrade

xx.xx.xx.xx - - [06/Mar/2021:03:51:04 +0000] "GET /cable HTTP/1.1" 301 5 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.82 Safari/537.36"
xx.xx.xx.xx - - [06/Mar/2021:03:51:11 +0000] "GET /cable HTTP/1.1" 301 5 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.82 Safari/537.36"

Here is my working /cable config in NGINX

location /cable {
	proxy_pass http://app;
	proxy_http_version 1.1;
	proxy_set_header Upgrade $http_upgrade;
	proxy_set_header Connection "Upgrade";

	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	proxy_set_header Host $http_host;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header X-Forwarded-Proto https;
	proxy_redirect off;
}