<body onload='runTest()'>
<script>
if (window.testRunner) {
testRunner.dumpAsText();
testRunner.waitUntilDone();
}
function runTest() {
document.getElementById("x").innerHTML = "";
setTimeout(function(){
document.body.innerHTML = "<b>PASS:</b> body and iframe cleared without crashing.";
testRunner.notifyDone();
}, 0);
}
</script>
<div id="x">
<iframe src="does-not-exist">
</div>
</body>