I am stuck with apache2. I've read that mod_proxy doesn't support websockets. Does it support EventSource?
I've found a fair bit of issues with WebSockets over proxies, particularly over large corporate networks, which employ proxy routers that don't allow persistent connections, so you might find this may also have an impact for any live communication. A
If you're looking for a way to push live server events and only need the one-way communication, you should check out Pusher or some sort of polyfill for backward support. :)
Hope that helps.