title: html video fullscreen mode with typescript
body: <p>could someone please tell me how to turn on fullscreen mode when using video tag? I am using following typescript:</p>
  
  <pre><code>var vid = &lt;HTMLVideoElement&gt; document.getElementById('video1');
  </code></pre>
  
  <p>I would like to play video in fullscreen in window.onload event.</p>
  
  <p>It seems typescript does not support requestFullscreen, or other "webkitFullscreen" mode. I search other questions on stackflow, and they seem bit outdated.</p>