<svg xmlns="http://www.w3.org/2000/svg" onload="setTimeout(boom, 30);" class="reftest-wait">

<script>
function boom()
{
  try {
    document.getElementById("path_1").pathSegList.insertItemBefore({}, 0);
  } catch(e) {
  }

  document.documentElement.removeAttribute("class");
}
</script>

<path id='path_1' d='M300,25 C500,100 575,300 330,350'/>

</svg>