title: Can't play YouTube on mediaelement
body: <p>I have a mediaelement to play youtube with XAML and code below:
  XAML:</p>
  
  <pre><code>&lt;MediaElement AutoPlay="False" AreTransportControlsEnabled="True" IsFullWindow="False"&gt;
      &lt;MediaElement.TransportControls&gt;
          &lt;MediaTransportControls IsFullWindowButtonVisible="True"/&gt;
      &lt;/MediaElement.TransportControls&gt;
  &lt;/MediaElement&gt;
  </code></pre>
  
  <p>Code:</p>
  
  <pre><code>VideoLink.Text = "https://www.youtube.com/watch?v=QJ9h7EBs5LU";
  string videoLink = VideoLink.Text.Substring(Math.Max(0, VideoLink.Text.Length - 11));
  
  var url = await YouTube.GetVideoUriAsync(videoLink.ToString(), YouTubeQuality.Quality480P);
  YoutubePlayer.Source = url.Uri;
  YoutubePlayer.Play();
  </code></pre>
  
  <p>I'm having trouble, ie can not play youtube with error message like the image below:
  <a href="https://i.stack.imgur.com/Q3tKq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Q3tKq.png" alt="video error"></a></p>
  
  <p>How to handle it?</p>