During simulcast conference if two participants publish video at the same time the tab crashes in Chrome

[anand-io]

• [x] I have verified that the issue occurs with the latest twilio-video.js release and is not marked as a known issue in the CHANGELOG.md.
• [x] I reviewed the Common Issues and open GitHub issues and verified that this report represents a potentially new issue.
• [x] I verified that the Quickstart application works in my environment.

Code to reproduce the issue:

https://github.com/anand-io/video-quickstart-js

Expected behavior:

Should not crash

Actual behavior: Chrome crashed

Steps to reproduce: 1) Clone modified video-quickstart-js in which I changed the "Preview my camera" button to "Toggle my camera" to attach a video track in-between the call, also turned on "simulcast". 2) You need two people/machine to replicate this issue so use ngrok/server. 3) Both participants join the same room 4) Both participants turn on the camera almost at the same time or a one sec delay. 5) one side it should crash(the one that gets "Glare detected; rolling back")

Note: Happening only for simulcast conference.

Video sample: https://cl.ly/1U1I2r1v3t3a https://cl.ly/271H3v0J0I32 https://cl.ly/0K0w2M1X3i2M

The crash happens only when this I see this log - "Glare detected; rolling back"

Software versions:

• [x] Browser(s): Chrome
• [x] Operating System: MacOS and Windows
• [x] twilio-video.js: 1.10.0(since the simulcast released)
• [x] Third-party libraries (e.g., Angular, React, etc.): None, reproducible using video-quickstart-js.

[markandrus]

@anand-io thanks very much—we'll dig into this and file a bug. My guess is it is a change in behavior in Chrome.

[anand-io]

I gotta give you more info. This has been happening since the simulcast release in twilio-video. I didn't get time to replicate that in quick start app and create an issue here that time. So I don't think this is recent chrome issue.

[markandrus]

@anand-io we have fixes for this issue slated to land in 1.12.0:

• https://github.com/twilio/twilio-video.js/pull/347
• https://github.com/twilio/twilio-webrtc.js/pull/30