title: '__flash__removeCallback' is undefined when deleting DOM element with Youtube iframe
body: <p>I have a div with a Youtube video embedded via iframe. </p>
  
  <pre><code>&lt;div id="container"&gt;
      &lt;div id="video"&gt;
          &lt;iframe width="480" height="360" src="http://www.youtube.com/embed/LiyQ8bvLzIE" frameborder="0" allowfullscreen&gt;&lt;/iframe&gt;
      &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I change the content of #container with an ajax call</p>
  
  <pre><code>$.get(url, function(data) {
      ('#container').html(data);
  }
  </code></pre>
  
  <p>Now I get the following error in IE9: "SCRIPT5009: '_<em>flash</em>_removeCallback' is undefined". </p>
  
  <p>I tried removing, deleting,... the video and/or iframe before the ajax call but that doesn't work:</p>
  
  <pre><code>&lt;script&gt;
      $('#video').html('')
  &lt;/script&gt;
  
  &lt;script&gt;
      $('#video').empty()
  &lt;/script&gt;
  
  &lt;script&gt;
      $('#video').remove()
  &lt;/script&gt;
  
  &lt;script&gt;
      $('#video iframe').attr('src', '')
      $('#video').empty()
  &lt;/script&gt;
  
  &lt;script&gt;
      $('#video').hide()
      $('#video iframe').attr('src', '')
      $('#video').empty()
  &lt;/script&gt;
  
  ...
  </code></pre>
  
  <p>But now I'm out of idea's...</p>