<script>

window.onpageshow = function(evt) {
    if (!window.testRunner)
        return;

    if (!evt.persisted)
        return;
    
    setTimeout("testRunner.notifyDone()", 0);
}

function clickLinkToSlowPage() {
    var link = document.getElementById("linkToSlowPage");
    var linkRect = link.getClientRects()[0];
    var targetX = linkRect.left + linkRect.width / 2;
    var targetY = linkRect.top + linkRect.height / 2;
    eventSender.mouseMoveTo(targetX, targetY);
    eventSender.mouseDown();
    eventSender.mouseUp();
}

window.onload = function(evt) {
    setTimeout("clickLinkToSlowPage()", 0);
}

if (window.testRunner) {
    testRunner.overridePreference("WebKitUsesPageCachePreferenceKey", 1);
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
} else
    document.write('This test must be run by WebKitTestRunner!');
</script>

This test dumps frame load callbacks.  It is only useful inside of WebKitTestRunner.<br><br>
<a id="linkToSlowPage" href="resources/resource-that-goes-back-while-still-loading.php">This link goes to a slow loading page.</a>
Bug <a href="https://bugs.webkit.org/show_bug.cgi?id=117112">117112 - Going "back" to a cached page from a page where the main resource never finished loading breaks scrolling, amongst other issues.</a><br><br>
In the broken case, the second page gets a didFinishLoad callback intertwined with the restoration of the cached page, even though it's already gotten a didFailLoad callback.<br>
The final 4 callbacks look like:<br>
didFailLoadWithError<br>
didStartProvisionalLoadForFrame<br>
didFinishLoadForFrame<br>
didCommitLoadForFrame<br><br>
When fixed, the final 4 callbacks should be:<br>
didFailLoadWithError<br>
didStartProvisionalLoadForFrame<br>
didCommitLoadForFrame<br>
didFinishLoadForFrame<br>