confusion with complex list of or dfn-source
confusing language in boolean _readonly
confusing language in RTCPeerConnection is interesting
fancy-quotes-are-bad
Unspecified input and output things
Bug: dom-mediastream constructor -- add track
Bug: informative confusion for developer manipulation -- add track
Bug: uuid is not defined
Bug: first is not defined in MediaStream.getTrackById()
Bug: match is not defined in MediaStream.getTrackById()
Bug: present is not defined in MediaStream.removeTrack()
Bug: run-the-following-steps
Bug: definition not here -- MediaStream.active
Bug: next-serviced for applyConstraints()