The track read-only property of the RTCRtpSender interface returns the MediaStreamTrack which is being handled by the RTCRtpSender.
The track read-only property of the RTCRtpSender interface returns the MediaStreamTrack which is being handled by the RTCRtpSender.
A MediaStreamTrack object representing the media associated with the RTCRtpSender. If no track is associated with the sender, this value is null, in which case the sender transmits nothing.
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https://developer.mozilla.org/en-US/docs/Web/API/RTCRtpSender/track