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They changed it in 4.2. So, that - to interact with HTML5 - you need to tap it first, which will enable HTML5, to preserve battery life. Unfortunately, this doesn't work with YouTube. Apple updates the desktop Safari to be (almost) full compatible with HTML5 - iPad's Safari support QuickTime movies, and that's pretty much it.
 
Yeah I tried.

The only thing that works is the YouTube mobile site which I don't think is too bad. The YouTube app on the iPad is decent enough imo.
 
Solution: Don't install buggy beta software.

iOS 5 is intended only for development, not normal use. Normal user features may be broken, as many are in iOS 5.
 
Solution: Don't install buggy beta software.

iOS 5 is intended only for development, not normal use. Normal user features may be broken, as many are in iOS 5.

It stopped working since iOS 4 😉

The problem is tha Apple don't want to / cba to implement full HTML5 into the mobile Safari, maybe because of battery. The only 'support' for HTML 5 is the ability to play QuickTime.
 
Solution: Don't install buggy beta software.

iOS 5 is intended only for development, not normal use. Normal user features may be broken, as many are in iOS 5.

It's not just iOS 5. I have 4.3.3 and it's the same problem.
 
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