Make a web viewer play automatically and full screen on iPad

[Mountain]

Hi

I just opened a file I have and I created a web viewer that contains youtube video. 

When I opened the file on my iphone 4s  It plays after I tap it and it becomes full screen

 

When I open the file on my iPad  It doesn't start automatically start and it doesn't play full screen

Can't i modify the url to make this happen automatically on both somehow?

Thanks

[Mountain]

Update

I tried to change the urls and it doesn't seem to work. Can someone else out there try to open a youtube video within their web viewer  and see if it plays automatically on the iphone and on ipad.