RTCPeerConnection.restartIce()

Category: JavaScript
Type: New or changed feature
Status: Enabled by default (Chrome 77)
Intent stage: Evaluate readiness to ship

Summary

Adds a method for triggering an ICE restart which causes a WebRTC connection to try to reconnect. This feature is already available in Chrome by passing the {iceRestart:true} argument to createOffer(). restartIce() is a version of this method that works regardless of signalingState.

Motivation

This is part of "Perfect Negotiation", which makes signaling in WebRTC race-free and less error-prone. For more details, see https://docs.google.com/presentation/d/1xcvf0udNeSH7s1FOY7RRqr1dEFvokZjn-MZPjwy3iXQ/edit?usp=sharing.

Standards & signals

Specification: https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-restartice
Firefox: In development — Confirmed in a public W3C WebRTC WG meeting
Safari: No signal
Web developers: No signals
Tracking bug: https://bugs.chromium.org/p/chromium/issues/detail?id=980881

Docs: N/A

Explainers: https://docs.google.com/presentation/d/1xcvf0udNeSH7s1FOY7RRqr1dEFvokZjn-MZPjwy3iXQ/edit?usp=sharing

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