Experimental: This is an experimental technology
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The usernameFragment property of the RTCIceCandidateStats interface is a string that represents the ICE username fragment ("ice-ufrag").
The fragment uniquely identifies a single ICE interaction session, and can be used to identify communications that are part of the same session even across ICE restarts.
For more information see RTCIceCandidate.usernameFragment.
A string representing the usernameFragment of the corresponding RTCIceCandidate.