<!DOCTYPE html>
<html>
<head>
<script>

function boom()
{
  dump("before capture\n");
  document.createElement("audio").mozCaptureStreamUntilEnded();
  dump("before context\n");
  new window.AudioContext();
  dump("before gc\n");
  SpecialPowers.forceCC();
  dump("after gc\n");
}

</script>
</head>
<body onload="boom();"></body>
</html>

