Web sockets are only used for WebRTC connection establishment. The code that creates the RTCPeerConnection is part of the Emscripten-generated JavaScript bundle. I'm using a library called HumbleNet to emulate Berkeley sockets over WebRTC.

The code is here: https://github.com/jdarpinian/ioq3 and here: https://github.com/jdarpinian/HumbleNet. For example, here is the file where the RTCPeerConnection is created: https://github.com/jdarpinian/HumbleNet/blob/master/src/humb...

I feel your pain. WebRTC is extremely difficult to use.