RTCDataChannels that are created asynchronously will never open. This makes it impossible to create new channels later in the connection.
Chrome and Firefox have no such issue.
Simple reproduction: https://codepen.io/RationalCoding/pen/Qzwqrg?editors=0011
It should be noted that the channel is received by the remote peer (ondatachannel is fired). The channel just never opens and cannot send data.
Created attachment 357004 [details]
Comment on attachment 357004 [details]
Clearing flags on attachment: 357004
Committed r239064: <https://trac.webkit.org/changeset/239064>
All reviewed patches have been landed. Closing bug.