A simple webrtc demo, using WebSockets for the protocol of the signaling server.
First, you'll need node.js. Then you need these packages:
npm install -g http-server
npm install ws
To run the demo, run the signaling server...
node server.js
...and the http server.
http-server
Then open the client in two tabs at http://localhost:8080. Have each client click connect. You should now see two images of your camera in each tab.
If you want to try a real video chat, run the signaling server from a server that both clients can access. Then, on each client, change the content of the texxtbox that contains ws://localhost:8765 to ws://<addressOfTheSignalingServer>:8765. Have both clients click connect, and you should be able to see the other end.
This might not always work, as I don't think TURN is set up correctly.