title: Embedded YouTube videos in native HTML5 mode and full screen
body: <p>I know about the issues of HTML5 video and full screen in general. However, this is about embedded YouTube videos and using the YouTube default iframe embed code.</p>
  
  <p>The context is me trying to answer <a href="https://stackoverflow.com/questions/10324159/is-there-any-point-in-using-the-seamless-and-or-sandbox-attribute-for-youtube-if">my own question about seamless and sandbox for YouTube videos</a> more in depth. Work has begun at a <a href="http://keryx.se/dev/html5/sandboxed-seamless-youtube-test.html" rel="nofollow noreferrer">test page</a></p>
  
  <p>(Note that form elements do not work at all so far.)</p>
  
  <p>The thing is that currently I am not able to get <strong>any</strong> video to play in full screen, if I am signed in to the HTML trial. Attributes are therefore pointless.</p>
  
  <p>Does anyone have <strong>up to date</strong> knowledge about YouTube's plans to provide full screen and if browser would allow it because of security restrictions or have a work around for the issue today?</p>
  
  <p>I do not wish to enable full screen by default. The user must initiate it by him-/herself.</p>
  
  <p>Using an alternative video player is currently not an option, since the purpose is to test YouTube's default code.</p>