DOMException when testing

[antgustech]

This is what I did:

git clone https://github.com/pchab/ProjectRTC.git
cd ProjectRTC/
npm install
npm start
Open localhost:3000 in chrome and start a stream.
Click refresh to get the URL
Open new private Chrome window and go to the copied URL

In the console of the private window I get DOMException error. In the browser I can see the name of the previous started stream. If I click View, I get a video window but it keeps loading forever.

I'm using latest Chrome build on Ubuntu 18