@yuvsaha123 & @dtischler, I was able to fix it on my side. You can see the changed Dockerfiles on my GitHub fork:
Also, I still ran into this issue with Chrome and Safari. The README.md has instructions for Chrome and Firefox, but not Safari. So for anyone reading this thread, the fix to get the camera video when using Safari is…
Enable Show Develop menu in the menu bar from the Safari: Preferences: Advanced tab.
Then check Disable ICE Candidate Restrictions from within the Develop: WebRTC menu.
