Twitter bootstrap modal doesn't load external urls inside modal.

Sample Code : jsFiddle

<a data-toggle="modal" class="btn" href="http://stackoverflow.com" data-target="#myModal">click me</a>
<div class="modal hide fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  <div class="modal-header">
    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
    <h3 id="myModalLabel">Modal header</h3>
  </div>
  <div class="modal-body">
  </div>
</div>
twitter-bootstrap modal-dialog
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