WebSocket connection failed with nginx, nodejs and socket.io

Question

I try to setup nodejs with nginx. But when the client try to connect it fails with... ``` WebSocket connection to 'ws://www.mydomain.com/socket.io/1/websocket/KUv5G...' failed: Error during WebSocket handshake: 'Connection' header value is not 'Upgrade': keep-alive socket.io.js:2371 ``` So how to enable websocket comunication? my current nginx config ``` upstream mynodejsapp { server 127.0.0.1:3000 max_fails=0 fail_timeout=10s weight=1; ip_hash; keepalive 512; } server { listen 80; listen [::]:80 default_server ipv6only=on; index index.html; server_name mydomain.com www.mydomain.com; keepalive_timeout 10; gzip on; gzip_http_version 1.1; gzip_vary on; gzip_comp_level 6; gzip_proxied any; gzip_buffers 16 8k; gzip_disable "MSIE [1-6]\.(?!.*SV1)"; location / { proxy_pass http://mynodejsapp; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-Proto $scheme; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $host; proxy_set_header X-NginX-P…

Accepted Answer

first,upgrade your nginx server to 1.3 or higher.

second,my nginx conf works.you can follow my conf.

```
server {
    listen       80;
    server_name jn.whattoc.com;

location / {
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_set_header X-NginX-Proxy true;

proxy_pass http://127.0.0.1:4050/;
      proxy_redirect off;

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

WebSocket connection failed with nginx, nodejs and socket.io

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