199316 2019-06-28 03:38:21 -0700 addIceCandidate({candidate: "", sdpMLineIndex: 0 })) throws an error 2021-01-17 04:01:48 -0800 1 1 1 Unclassified WebKit WebRTC Safari 12 All All RESOLVED CONFIGURATION CHANGED InRadar P2 Normal --- 1 daginge webkit-unassigned webkit-bug-importer youennf oldest_to_newest 1548777 0 daginge 2019-06-28 03:38:21 -0700 What steps will reproduce the problem? (1) go to https://webrtc.github.io/samples/src/content/peerconnection/pc1/ (2) make a call (3) paste the following into the JS console pc2.addIceCandidate({sdpMLineIndex: 0, candidate: ""}) What is the expected result? The promise resolves. What happens instead? an exception is thrown: OperationError: Expect line: candidate:<candidate-str> This is a problem since Firefox 69 (at least) started generating those candidates. This is a duplicate of issue https://bugs.chromium.org/p/chromium/issues/detail?id=978582. Adapter can provide a fix for this, but we would like to make that fix temporary. 1719980 1 webkit-bug-importer 2021-01-15 13:36:11 -0800 <rdar://problem/73261447> 1720172 2 youennf 2021-01-17 04:01:48 -0800 This seems fixed in latest STP.