<!-- webkit-test-runner [ UsesBackForwardCache=true ] -->
<!DOCTYPE html>
<html>
<body>
<script src="../../../resources/js-test-pre.js"></script>
<iframe src="about:blank"></iframe>
<script>
window.addEventListener("pageshow", function(event) {
    debug("pageshow - " + (event.persisted ? "" : "not ") + "from cache");

    if (!window.sessionStorage.page_cache_window_iframe_removed_test_started)
        return;

    delete window.sessionStorage.page_cache_window_iframe_removed_test_started;

    setTimeout(function() {
        window.opener.finishJSTest();
    }, 0);
}, false);

window.addEventListener("pagehide", function(event) {
    debug("pagehide - " + (event.persisted ? "" : "not ") + "entering cache");
}, false);

window.addEventListener('load', function() {
    setTimeout(function() {
         window.opener.removeFrameInChild();
        // Force a back navigation back to this page.
        window.sessionStorage.page_cache_window_iframe_removed_test_started = true;
        window.location.href = "page-cache-helper.html";
    }, 0);
}, false);
</script>
<script src="../../../resources/js-test-post.js"></script>
</body>
</html>