This feature will be implement in the 1.3 branch, you can see the
roadmap here: http://trac.nginx.org/nginx/roadmap

Or you can use my tcp proxy module as an alternative temporarily :
https://github.com/yaoweibin/nginx_tcp_proxy_module

Thanks.

2012/5/18 Alexandr Gomoliako <zzz@zzz.org.ua>:
>> I want to use websockets in my appliaction server. My provider has
>> always in front of the application server an nginx-server.
>> And since nginx currently doesn't support websockets I have a problem.
>> So I just wanted to ask, how is the progress about proxiing websocket
>> communications?
>> I would be very great and I could imagine that other users may ask for
>> that, too in the near future.
>
> I've been playing with websockets for awhile now and I don't think it
> can make a difference for your provider. Real time web application are
> really expensive to handle, each frame costs almost as much as
> keepalive request, but you don't usually expect hundreds of requests
> from each client every second. It's like streaming video by 100 bytes
> at a time.
>
> So, it has to be some kind of frame multiplexing over a single
> connection with backend and even then it's still a lot to handle.
>
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