You can also consider tunneling over WebSockets. It's a lot easier than WebRTC especially you don't need the handshaking nonsense which often require self hosting STUN and TURN servers if you don't want to rely on third parties. IIRC the performance of WebSockets is good enough for companies like Xoom.

https://webrtchacks.com/zoom-avoids-using-webrtc/

Some VNC services like noVNC and Xpra also uses WebSockets.