<body>
<p>Test that delivering a message to a port that was never referenced from JS doesn't cause a crash.</p>
<pre id=log></pre>

<script>
function gc()
{
    if (window.GCController)
        return GCController.collect();

    for (var i = 0; i < 10000; i++) { // > force garbage collection (FF requires about 9K allocations before a collect)
        var s = new String("abc");
    }
}

function log(message)
{
    document.getElementById("log").innerHTML += message + "<br>";
}

if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}

var channel = new MessageChannel;
channel.port1.postMessage("msg");
channel.port1.start();
channel = 0;
gc();

setTimeout("log('PASS'); if (window.testRunner) testRunner.notifyDone()", 100);

</script>
</body>