YouTube iFrame Players created using the iFrame API are now broken in IE 8, 9, 10 - though none of the code has changed on my side. It also seems that the issue exists with other embeds.
This YouTube demo, for example, doesn't work in IE: https://developers.google.com/youtube/youtube_player_demo
The video plays for a few seconds and then switches to HD and then errors out.
Any solutions would be appreciated.