<!DOCTYPE html>
<script src="/js-test-resources/js-test.js"></script>
<script>
    description('Tests that an iframe restored from history does not report resource timing.');
    window.jsTestIsAsync = true;
    if (window.internals)
        internals.clearMemoryCache();

    function runTest() {
        if (!sessionStorage.didNav) {
            sessionStorage.didNav = true;
            window.addEventListener('message', (event) => {
                location.href = 'resources/alert-then-back.html';
            });
            document.getElementById('target-iframe').contentWindow.postMessage('navigate', '*');
        } else {
            delete sessionStorage.didNav;

            resources = performance.getEntriesByType('resource');
            shouldBe('resources.length', '1');
            shouldBeEqualToString('resources[0].name', 'http://127.0.0.1:8000/js-test-resources/js-test.js');
            if (window.testRunner)
                finishJSTest();
        }
    }
    window.onload = runTest;
</script>
<iframe id="target-iframe" src="http://localhost:8080/misc/resources/navigate-on-message.html"></iframe>