在iPad上的playVideo()命令之后，YouTube iFrame API以缓冲状态挂起

I have a problem with the iFrame API on the iPad (iOS 7, Safari browser). When I try to start the video with the 'player.playVideo()' command, the player goes to black and returns a '3'-state when I call 'player.getPlayerState()' command (says it's buffering).I have a problem with the iFrame API on the iPa