<!DOCTYPE html>
<html>
<head>
<style>
@page {}
</style>
<script>
function boom()
{
// This shouldn't cause a shutdown leak.
document.styleSheets[0].cssRules[0].style.someExpando = "set an expando to preserve the wrapper";
}
</script>
</head>
<body onload="boom();"></body>
</html>