Author: mdale
Description:
It seems there was a regression or some other issue in the iframe embed support:
Iframe embeds are not working:
https://commons.wikimedia.org/wiki/File:Cheetahs_on_the_Edge_(Director's_Cut).ogv?embedplayer=yes
https://commons.wikimedia.org/wiki/File:2010-07-14-Blitze-2-Zeitlupe2.ogg?embedplayer=yes
I was able to recreate some issues locally with iframe embed locally as well.
Version: unspecified
Severity: major