Comcast has a device with an audio sink which does not support async state changes i.e. it completes transition to PAUSED state on preroll. The video sync on that device works as expected, so in case of videos everything works as expected. The problem, however, arises in audio-only cases, where there's a need to be able to finish seeks in sync state changes (currently, only seeks on async state changes are supported).
See: https://github.com/WebPlatformForEmbedded/WPEWebKit/pull/926
Pull request: https://github.com/WebKit/WebKit/pull/4601
Committed 254923@main (a8ae25e11301): <https://commits.webkit.org/254923@main> Reviewed commits have been landed. Closing PR #4601 and removing active labels.
<rdar://problem/100465807>