<svg xmlns="http://www.w3.org/2000/svg" 
     xmlns:html="http://www.w3.org/1999/xhtml"
     onload="setTimeout(function() { document.getElementById('focc').style.overflow = 'scroll'; setTimeout(function() { location.reload(); }, 200); }, 200);">

  <g id="focc">
    <foreignObject width="500" height="500" id="fo" x="20" y="20">
      <div xmlns="http://www.w3.org/1999/xhtml">
        <select><option>Reload to see some assertions</option></select>
      </div>
    </foreignObject>
  </g>

</svg>