<script>

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

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

var object = "aaaaaaaaaa";
for (var i = 0; i < 16; ++i)
    object += object;

var count = 1;

function iframeClicked()
{
    try {
        history.pushState(object, object, object);
    } catch (e) {
        log("Expected exception: " + e);
        if (window.testRunner)
            testRunner.notifyDone();    
    }

    log("iFrame successfully added item: " + count + " times");
    ++count;

    if (count > 50) {
        log("This has gone on for way too long");
        if (window.testRunner)
            testRunner.notifyDone();
    }

    setTimeout(window.parent.click, 0);
}

</script>
<body>
<div id="logger"></div>
</body>