In the past, subtitles could have markup applied to them to allow for boldface, italics, size changes and the like, but now it no longer works and the markup displays in plain text. I started noticing this recently, like a couple of weeks now. This is problematic as many timedtexts have this markup applied to them, as they worked at the time they were applied, but now they no longer do.
Steps to reproduce:
1.) Go to this here link: https://commons.wikimedia.org/w/index.php?title=File%3APatrioticheskaya_Pesnya_(May_2000).oga
2.) Play the OGG file on the page using the media player.
3.) Note the timed text at around the 0:50 second mark not displaying markup correctly. It should be displaying bold text, italic text, large text, etc.
This bug occurs when not logged in or logged in, on Microsoft Edge and Google Chrome (in Incognito mode as well). The failure to successfully parse the markup happens across the various Wikimedia projects, from Wikipedia to Wikimedia Commons. It also happens regardless of where the timedtext is stored, whether locally on say Wikipedia or over on the Wikimedia Commons.
This may be related to: T224367
