I have built a chromeless youtube player in a webpage, using the iframe API from the youtube dev site. Everything works like a charm, except when I view my page on an iPad or Android device, the video's volume and mute controls do not work.
_player.mute()
_player.setVolume(0);
Strangely, the other controls DO work, for example:
_player.pauseVideo();
_player.playVideo();