WebSocket using Nginx as a reverse proxy

Need Nginx as WebSocket reverse proxy, no nginx reverse proxy time no problem, through Nginx reverse proxy will report 400 error, check background debugging information:

Tornado.general–debug–can "Upgrade" only to "WebSocket".

By analyzing the original is required Nginx to do the following configuration:

Upstream Wsbackend {server 127.0.0.1:10003;} server {listen 3000;server_name localhost; #charset koi8-r; #access_log logs/host.access.log main;# location/{# root HTML ; # index index.html index.htm;#}location/{proxy_pass http://wsbackend;proxy_http_version 1.1;proxy_set_header Upgrade $http _upgrade;proxy_set_header Connection "Upgrade";}}

If you have a multi-tier reverse proxy, you need to add that information to each layer!

WebSocket using Nginx as a reverse proxy