WebSocket Proxying only working on local machine, fails on other machines in the network (Apache Users)

Hello fellow Apache Users ;)

I'm new to this mailing list and I hope to be able to contribute to this list as much as I hope to gain knowledge from it :)

I'm stuck while configuring my web server (unfortunately I'm bound to a Windows machine and I must not switch to *nix because of company policy). The web server consists of the following components:

# Tomcat 7.0.42

# Apache 2.4.6

# Windows 7 Ultimate 64bit

I have to use WebSockets as the web application depends heavily on this new technology and it is also not only a "nice to have" but nearly a "must" to get the application up and running. The web application itself consists of TWO applications - an authentication "server" and the application itself. Both of them are independent WARs at Tomcat and proxied by the Apache httpd. I use the Atmosphere Framework to implement WebSockets in the backend, and the jquery.atmosphere.js _javascript_ library to implement WebSockets in the frontend.

Here's my configuration:

############################# httpd-vhosts.con ############################

ServerName localhost

RewriteEngine on

RedirectMatch ^/$ /bloggofant/

RewriteRule ^/bloggofant$ /bloggofant/ [R]

RewriteRule ^/bloggofant/authenticated$ /bloggofant/authenticated/ [R]

ProxyRequests Off

ProxyPreserveHost On

ProxyVia On

AddDefaultCharset off

Order deny,allow

Allow from all

</Proxy>

#ProxyHTMLLogVerbose On

LogLevel debug

ProxyHTMLEnable On

ProxyHTMLBufSize 102400

ProxyHTMLExtended On

ProxyHTMLStripComments Off

ProxyHTMLDocType "<!DOCTYPE html>" XML

ProxyHTMLMeta On

DocumentRoot "${SRVROOT}/htdocs/"

ProxyPass /bloggofant/authenticated/websock ws://localhost:8080/BloggoFantApp/websock

ProxyPassReverse ws://localhost:8080/BloggoFantApp/websock

ProxyHTMLURLMap /BloggoFantApp/websock /bloggofant/authenticated/websock

</Location>

ProxyPass /bloggofant/authenticated/ ajp://localhost:8009/BloggoFantApp/

ProxyHTMLURLMap ajp://localhost:8009/BloggoFantApp /bloggofant/authenticated/

ProxyPassReverse ajp://localhost:8009/BloggoFantApp/

SetOutputFilter proxy-html

ProxyHTMLURLMap /BloggoFantApp/ /bloggofant/authenticated/

ProxyPassReverseCookiePath /BloggoFantApp/ /bloggofant/authenticated/

#RequestHeader unset Accept-Encoding

</Location>

ProxyPass /bloggofant/ ajp://localhost:8009/BloggoFantAuthentication/

ProxyHTMLURLMap ajp://localhost:8009/BloggoFantAuthentication /bloggofant/

ProxyPassReverse ajp://localhost:8009/BloggoFantAuthentication/

SetOutputFilter proxy-html

ProxyHTMLURLMap /BloggoFantAuthentication/ /bloggofant/

ProxyPassReverseCookiePath /BloggoFantAuthentication/ /bloggofant/

#RequestHeader unset Accept-Encoding

</Location>

</VirtualHost>

###########################################################################

If I access the web application from the machine where my web server is running, all is fine and the websocket connect is established as awaited, _but_ if I try to access the application from another machine in the network, the websocket connection is not working anymore and I can't see why? It seems like the "ProxyPassReverse" within the websock location is not working correctly as I see the frontend _javascript_ trying to open the websocket connection and also the backend logging the attempt, but it seems that the response is never sent!?

Does anybody have a hint or could give me some advice on this topic? Even if it's only a 'best guess' - every response is highly appreciated! If you need more information, please don't hesitate to ask! ;)

cheers

heinz