asterisk users - Aug 2014 - Asterisk websocket with Nginx 502 Gateway error

Hi all,

I am using the following set up:
SIPML5 --> Nginx --> Asterisk, where NGINX as a reverse proxy, main
purpose
is to take in wss and route to Asterisk's ws.

However, I am facing this issue recently where Nginx will return 502
gateway error of

8018#0: *24183 upstream prematurely closed connection while reading
response header from upstream, client: 116.15.31.xxx, server:
asteriskstage.xxx.yy, request: "GET / HTTP/1.1", upstream: "
http://127.0.0.1:8088/ws", host: "asteriskstage.xxx.yy"

Anyone has any idea why?

Here's my nginx config:

http://pastebin.com/UU0G3YLh

Regards,

Steve
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