Note

• Two users with working headsets are required.

Found in

• 108.0a1

Affected versions

• 108.0a1
• 107.0b2
• 106.0
• 102esr

Tested platforms

• Affected platforms: Win 10, macOS 12, Ubuntu 22.04

Steps to reproduce

1. The two users join the same a call on https://www.facebook.com/
2. Once both participants are joined, click on the'Watch Together' button.
3. Select any video from 'Watch Together' panel.

Expected result

• Video is opened and both participants are able to watch the same video.

Actual result

• Video is not opened and none of the participants are able to watch the video.
• Error message "Sorry, we're having trouble playing this video" is displayed.

Regression range

• We will find the regression asap, if there is one.

Additional notes

• Printscreen attached to observe the issue.

Giorgia, could you navigate to about:webrtc, press the Clear History button, run your reproduction steps, return to about:webrtc, press the Save Page button, and then upload the saved page to this bug? It would be helpful to have an upload from a working revision, and an upload from a regressed revision.

@Nico, I could not find a regression range for this issue. I have reproduced the bug all the way back to 59.0a1 when the Watch Together option is no longer available. It seems odd, but I know that when I tested this last month it worked as expected, maybe it's some site related issue. Also this seems to work on Chrome.
I've uploaded the saved page from a bad build as you suggested.

Removing the 'regressionwindow-wanted' keyword since this is not a regression.