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YouTube doesn't work in Safari on mid-2013 MacBook Air 13".

I've tried enabling HTML5 video at http://www.youtube.com/html5, and some videos did start playing after that, but most videos still don't work.

What I've noticed is that if you're viewing a video that does in fact work, and go into the full-screen mode, then all subsequent videos (which are suggested after the original video ends) do work, but only whilst you're still within the full-screen mode -- as soon as you exit the full-screen mode, depending on the video, Adobe Flash might again be required right away, without any option of going back fullscreen.

How do I make YouTube work without Adobe Flash? Clearly YouTube videos should all work without any exceptions, since they all are already encoded in H.264 just fine.

  • Not all YouTube videos are enabled for HTML playback yet. – StephenCollins Jul 15 '13 at 17:33
  • @drummin, what do you mean? why not? is there any workaround, as obviously the full-screen html5 mode works for every single video, apparently. – cnst Jul 15 '13 at 18:29
  • Can you give an example of a video that will not play for you in html5? – AllInOne Jul 25 '13 at 1:39
  • @AllInOne, most of them don't work, actually; it's more difficult to find a video that would actually work; just one of the many examples of videos that don't work: youtube.com/watch?v=5NV6Rdv1a3I , and if you search for "Daft Punk Get Lucky", then most of the videos in the results (remixes etc) won't play in HTML5. – cnst Jul 25 '13 at 1:45
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So this isn't a total solution but it should help.

You reported that even though you joined the html5 program the following video did not play in html5:

http://www.youtube.com/watch?v=5NV6Rdv1a3I

I was able to reproduce that result in Chrome.

Here's how I was able to get the video to play in html5:

In Chrome:

View > Developer > Developer Tools > Click on the little gear icon

In the resulting preference window:

Settings > Overrides > User Agent [X] > iPad -- iOS5

Then reload the video and it will be in HTML5.

Similar solution exists in Safari, but I have to walk the dogs. Back soon.

  • LOL, I guess one should run YouTube through a proxy with masquerading User-Agent! How nice of Google to make its own browser able to view videos on YouTube if one claims it's not Chrome, but Safari on iOS! :-) – cnst Jul 25 '13 at 2:02

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