[Webkit-unassigned] [Bug 273318] New: [WebRTC][GStreamer] Data channel is lost if setConfiguration() is called after createDataChannel()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=273318

            Bug ID: 273318
           Summary: [WebRTC][GStreamer] Data channel is lost if
                    setConfiguration() is called after createDataChannel()
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cadubentzen at igalia.com
                CC: youennf at gmail.com

In the script below:

const pc = new RTCPeerConnection();
pc.createDataChannel("data-channel")
pc.setConfiguration({});
await pc.setLocalDescription();
const sdp = pc.localDescription.sdp;

sdp should contain a line like "m=application 9 UDP/DTLS/SCTP webrtc-datachannel", but with the GstWebRTC backend that's not true. The line is back in the SDP if pc.setConfiguration({}) is removed.

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