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Apprtc: Webrtc call from Firefox to Chrome with Unified Plan enabled fails
Chrome Version: 72.0.3584.0 OS: Mac High sierra 10.13.6
What steps will reproduce the problem? DUT: Open the Chrome with the following flag enabled --enable-blink-features=RTCUnifiedPlanByDefault& Peer Device (Macbook pro): Open Firefox (Version: 62.0) (1)Join htps://appr.tc/r/roomname from both the devices
What is the expected result? Media received both the sides.
What happens instead? No media is available from the peer to our DUT device. On the other hand, Audio and video from DUT is seen in the peer device.
Note1: This issue is not observed when we make calls between two chrome browsers with the same flag.
Not2: Firefox Unified plan calling Chrome M69 (stable) works fine as well.
Summary: Issue is only between Firefox (default Unified plan) with Chrome Unified plan (Enabling via flags)
@rantonysamy this was probably caused by a Firefox bug. See https://bugs.chromium.org/p/chromium/issues/detail?id=872431 for details. You might want to retest with FF63+
This is still broken, or worse yet, Firefox receives audio/video but Chrome still looks as if nobody has joined the call - privacy concern.
@ErikHellman Can you take a look? Simple fix would be do do sdpSemantics:'plan-b' for the time being, postponing the switch to Unified Plan.
