<html>
<head>
<meta charset="UTF-8">
<script>

function boom()
{
  // This file tests if we create a shutdown leak.
  document.getElementById("c").getContext("2d").fillText("x", 0, 0);
  document.styleSheets[0].cssRules[0].style.whatever = "create an expando to preserve the wrapper";
}

</script>

<style>

@font-face {
  font-family: missing;
  src: local(missing);
}

</style>
</head>

<body onload="boom();">
<canvas id="c"></canvas>
</body>
</html>