I'm trying to create a secure node.js server without a websocket server on the same port. The port is 8080.

I can access the url in the browser and I can connect to websockets when I specify the port.

https://ws.site.com // Works
wss://ws.site.com // Don't work
wss://ws.site.com:8080 // Works

Why is this? What am I doing wrong? This is the nginx config

upstream ws.site.com {

server {
    listen 443;
    server_name ws.site.com;

    ssl on;
    ssl_certificate /path/ssl-bundle.crt;
    ssl_certificate_key /path/myserver.key;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;

    location / {
            access_log off;

            proxy_pass https://ws.site.com;
            proxy_redirect off;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_read_timeout 86400;

            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";

The wss:// URL handler uses the default port of WebSockets, which is 443 if you don't add a port suffix by your own. If you run it on a non-default one (8080) you need the port suffix.

  • So I could add support for http (80) and redirect to https (443)?
    – tbleckert
    May 19 '15 at 13:05
  • Hm I think I misread your anwser. You mean that wss://ws.site.com secretly adds 443 as the port? How can I fix this? It works here websocket.org/echo.html, how do they do it?
    – tbleckert
    May 19 '15 at 13:25
  • @tbleckert No secret here. The default port for wss is 443, like it is for https. You can specify another port if you want both cases.
    – sebix
    May 19 '15 at 15:49
  • You mean I need to run node directly on port 443?
    – tbleckert
    May 19 '15 at 17:58
  • what should be changed in this .conf file?
    – Esqarrouth
    Jun 6 '20 at 21:42

The problem is in your settings.

Your upstream is running on port 8080:

upstream ws.site.com {

And you are telling to look on https (443) port:

proxy_pass https://ws.site.com;
proxy_redirect off;

Fix it with http://ws.site.com

Simple port table:

  • port 80: http, ws
  • port 443: https, wss

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