WebRTC Joining room - webrtc

Question

Currently developing a WebRTC app,(local at the moment),
I used the codes of Muaz Khan as a starting point, Muaz Khan GitHiub
My problem is when i quick join the room with multiple tabs on my screen, +/- 1/5 does not join the room.
This does not happen all the time but alot.
when i reload the tab wich did not joined, and try it again, it works fine.
My own project has the problem and the muaz khan demo has it too.
The error in console log:
Uncaught TypeError: Cannot read property 'split' of undefined
the function in the WebRTC library:
function isEmpty(session) {
var stringified = JSON.stringify(session);
if (stringified === '{}' || !stringified.split(',').length) {
return true;
}
return false;
}
Can't find what's wrong because this error happens often, but not every time..

Answer 1

So, you're talking about this.
I'll suggest following demo, which is having following advantages:
Reliable connection for open/join rooms. It NEVER fails.
Auto reconnects if socket.io connection fails.
Reliably keeps room opened even if moderator leaves.
To install it in linux based systems:
mkdir rmc && cd rmc
wget https://cdn.webrtc-experiment.com/packages/rtcmulticonnection-client.tar
tar -xf rtcmulticonnection-client.tar
node server
Now it runs on port 8080.
You can even directly download the TAR or ZIP.