title: IE9/10 accessibility keyboard navigation issue
body: <p>Hi I'm having an issue on an app HTML5/JavaScript (sproutcore) I'm working on where pressing the tab key navigates through the links on the page. In IE 9/10 once all the links have been passed the and the focus reaches the address bar and becomes stuck there while in other browsers the cycle starts again at the first link as expected.</p>
  
  <p>I open the app in a popup window via the javascript in a link such as below</p>
  
  <pre><code>onclick="window.open('https://myappurl:4020','myApp','location=no,menubar=no,resizable=yes,scrollbars=yes,titlebar=yes,toolbar=no').focus();"
  </code></pre>
  
  <p>I have noticed when setting toolbar=yes this issue no longer occurs.</p>
  
  <p>Anyone else seen this issue before as I'm stuck wondering what could be causing this.</p>
  
  <p>Thanks Tobias</p>