I am trying to play video in Modal Pop up, it works fine in Chrome but not in Firefox.

Below is the Code:

<a href="#video" data-toggle="modal" id="clickForVideo">
  Click Me
</a>

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Modal poop up code:

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<div class="modal fade" id="video" role="dialog" style="display:none;">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-body modal-video">
        <iframe width="560" height="315" ></iframe>
      </div>
      <button type="button" class="btn modal-close" data-dismiss="modal">X</button>
    </div>
  </div>
</div>

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JS code:

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$(document).on("click", '#clickForVideo', function() {
  var src = '//www.youtube.com/embed/itTskyFLSS8?feature=player_embedded&autoplay=1';
  $('#video').modal('show');
  $('#video iframe').attr('src', src);
  $(".modal-video").fitVids();
});

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