[Webkit-unassigned] [Bug 234088] New: Browser returns "null" for remoteDescription on ontrack event

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=234088

            Bug ID: 234088
           Summary: Browser returns "null" for remoteDescription on
                    ontrack event
           Product: WebKit
           Version: Safari 15
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Major
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jaya.allamsetty at gmail.com
                CC: youennf at gmail.com

The browser returns "null" when we query for the remoteDescription on the RTCPeerConnection immediately after the "track" event is fired.

Steps to reproduce:
1. Go to https://jsfiddle.net/fippo/1k5oayqc/1/show and run the fiddle.
2. Examine the output that gets printed. 
3. 'remoteDescription', 'currentRemoteDescription' and 'pendingRemoteDescription' are all null in the ontrack event handler.

Chrome and Safari 15.0 return valid values for 'remoteDescription' whereas Safari 15.1 and STP Release 133 return null.
This breaks Jitsi client's functionality and no remote tracks can be seen.

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