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RTCConfiguration.offerExtmapAllowMixed is a non-standard option in the RTCPeerConnection’s RTCConfiguration. It was added as transitional property in order to enable a SDP feature that caused breakages with older versions of the WebRTC library (<M70). Old intent to ship: https://groups.google.com/a/chromium.org/g/blink-dev/c/7z3uvp0-ZAc/m/-4s8ps2pBAAJ That feature shipped default on in Chrome 89, see the PSA on discuss-webrtc: https://groups.google.com/g/discuss-webrtc/c/24LiX06HwpM

Status in Chromium

Blink>WebRTC>PeerConnection


Enabled by default

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

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Owners

Last updated on 2021-04-06