Websockets gives 501 error in 'some' networks in NGINX but works via Tomcat

[karansingh1000]

Hi Jeanfrancois,

I wanted to request help please.
Protocol: Websockets with fallback as long-polling
Tomcat: 8
NGINX: 1.6.0
Java: 1.7.0_45
OS: Ubuntu

My application works via websockets in most of the networks. But in some of networks when i directly access via NGINX i get:
WebSocket connection to 'ws://11.22.25.15/test/message?X-Atmosphere-tracking-id=0&X-Atmosphere-Framework=2.2.0-javascript&X-Atmosphere-Transport=websocket&X-Atmosphere-TrackMessageSize=true&X-Cache-Date=0&Content-Type=application/json&X-atmo-protocol=true' failed: Error during WebSocket handshake: Unexpected response code: 501

Then it fallsback to Long Polling in NGINX.
But in the same network it works via Tomcat on websockets.
Thus websockets work in tomcat and 'not' via NGINX.
(The same application 'will' run via NGINX on websockets in other networks)

Really Appreciate your help.

Thanks,
Jaskaran

[jfarcand]

Please use the mailing lisr for question : https://groups.google.com/group/atmosphere-framework?pli=1 or buy some support

[karansingh1000]

This was a issue in the Microsoft Proxy ISA. It does not work on port 80 for websockets.
Suggestion is 443 port fallback with ws protocol.