title: Chrome does not update data attribute of object tag
body: <p>I would like to dynamically change the 'data' property of an 'object' tag but this does not work in Chrome 48: in the console I can see the attribute value is updated correctly but the first animation is always displayed. Am I missing something?</p>
  
  <pre><code>&lt;!doctype html&gt;
  &lt;html&gt;
      &lt;head&gt;
          &lt;script type="text/javascript"&gt;
              window.addEventListener("load", function (event)
              {
                  setTimeout(function ()
                  {
                      console.log("change")
                      document.getElementById("flash").data = "http://edmullen.net/flash/BBC2.swf"
                  }, 2000)
              })
          &lt;/script&gt;
      &lt;/head&gt;
      &lt;body&gt;
          &lt;object id="flash" type="application/x-shockwave-flash" data="http://edmullen.net/flash/BBC2.swf"&gt;&lt;/object&gt;
      &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>