title: How can I make this YouTube link work on iOS?
body: <p>I am using Shadowbox.js for showing YouTube videos.</p>
  
  <p>However, on iOS devices, when I click to play the video, it returns a message regarding my browser not recognizing any of the supported formats available. I assume this is because it is flash.</p>
  
  <p>My link looks like <a href="http://youtube.com/embed/4gfupvPFZPg" rel="nofollow">this</a></p>
  
  <p>I assumed YouTube would forward me to a HTML5 version of the video, but it does not.</p>
  
  <p>Any idea how I can format this link to play on iOS?</p>
  
  <p>I thought the issue was directly with Shadowbox, but it displays this error even if I paste it into mobile Safari.</p>
  
  <p>Many thanks,
  Michael.</p>
  
  <p>PS - I have even tried appending <code>?html5=1</code> to the end of the URL but still no joy.</p>