28236 2015-03-19 06:06:47 +0000 The "rules for updating the text track rendering" are not run when mode changes from hidden to showing 2019-03-29 21:35:18 +0000 1 1 1 Unclassified WHATWG HTML unspecified Other All RESOLVED MOVED https://html.spec.whatwg.org/#media-playback P3 normal Unsorted 1 contributor ian annevk d mike philipj contributor oldest_to_newest 118672 0 contributor 2015-03-19 06:06:47 +0000 Specification: https://html.spec.whatwg.org/ Multipage: https://html.spec.whatwg.org/multipage/#media-playback Complete: https://html.spec.whatwg.org/#media-playback Referrer: Comment: The "rules for updating the text track rendering" are not run when mode changes from hidden to showing Posted from: 14.162.102.1 User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.76 Safari/537.36 OPR/28.0.1750.40 118673 1 philipj 2015-03-19 06:10:03 +0000 The "time marches on" algorithm runs the "rules for updating the text track rendering" only for "affected tracks", i.e. tracks where the the active cues have changed. This misses cues in tracks that have gone from hidden to showing. Per spec, those cues would only become visible when another cue in the same track changes its active state. This has been worked around in Blink by also running the "rules for updating the text track rendering" when a track goes from hidden to showing. It could possibly be spec'd as part of the "time marches on" algorithm, but that would only work because the idea is that this algorithm is run all the time, where in an implementation you would only run it when you have reason to think that any cues have changed their active state. 129701 2 d 2019-03-29 21:35:18 +0000 https://github.com/whatwg/html/issues/4486