RTCIceCandidate has no component

http://ortc.org/wp-content/uploads/2015/06/ortc.html#rtcicecandidate*
One thing worth pointing out here is that the candidate has no component.
That is fine conceptually, the component comes from the RTCIceTransport.

However, naive approaches might forget to add the component in the
onlocalcandidate event (or mangling getLocalCandididates) before signaling
it to the peer.

A note pointing that out would be helpful.