LayoutTests/plugins/resources/js-from-destroy-frame.html

<div id=playground></div>
<embed id="plg" type="application/x-webkit-test-netscape" ondestroy="pluginDestroyed()"></embed>
<script>
function pluginDestroyed()
{
    try {
        var req = new XMLHttpRequest;
        req.open("GET", "/", true);
        req.send();

        document.referrer;

        document.getElementById("playground").innerHTML = "<div onclick='alert(0)'></div>"
    } catch (ex) {
        alert("Unexpected exception: " + ex);
    }
}

</script>