<html>
<body onload="runTest()">
<div id="result"></div>
<script>

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

function done()
{
    testRunner.notifyDone();
}

function iframeLoadFinished()
{
    if (window.testRunner)
        setTimeout(done, 0);
}

function loadAfterPrefetch()
{
    var newIframe = document.createElement("iframe");
    newIframe.src = "http://localhost:8000/cache/resources/prefetched-main-resource-iframe.php";
    newIframe.onload = iframeLoadFinished;
    document.body.appendChild(newIframe);
}

window.onmessage = function(message)
{
    document.getElementById('result').textContent = message.data;
}

function runTest() {
    var link = document.createElement("link");
    link.rel = "prefetch";
    link.href = "http://localhost:8000/cache/resources/prefetched-main-resource-iframe.php";
    if (internals)
        internals.addPrefetchLoadEventListener(link, () => { loadAfterPrefetch(); });
    document.body.appendChild(link);
}
</script>
</body>
</html>