1: the new websocket plug does NOT work with socket.io socket.io on node which is what the zackowack plugin is based on is not a *true* websockets protocol.
2: it does work with a C# websocket server (I'm running one I've been developing now)
3: if the C++ follows the proper standards and protocols it should work as well.
I honestly prefer it over the socket.io I'm developing my server in C# for the simple fact that I can compile and test it on windows 8 and toss it on one of my Ubuntu servers and it will run without modifications as Linux can run native .Net applications via mono.
@DragonDrumstick - oops, you're right, fixed for the next build. In future it's best to make a full post in the Bugs forum, because I will definitely find it there, instead of coming across a bug by chance in the 'How do I' forum!