<svg xmlns="http://www.w3.org/2000/svg">
  <foreignObject x="100" y="100" width="500" height="300" style="overflow:hidden;">
    <div xmlns="http://www.w3.org/1999/xhtml" style="font: 40pt sans-serif" >
      Select this text using the mouse, it should not disappear!
    </div>
  </foreignObject>
  <script>
    if (window.eventSender) {
      document.execCommand("SelectAll");
      eventSender.mouseMoveTo(200, 200);
      eventSender.mouseDown();
      eventSender.mouseUp();
    }
  </script>
</svg>