multiple-redirects-TAO.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /element-timing/multiple-redirects-TAO.html - WPT Dashboard Interop Dashboard

<!DOCTYPE HTML>

<html>

<head>

<meta charset="utf-8" />

<title>This test validates some Timing-Allow-Origin header usage in multiple redirects.</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="resources/element-timing-helpers.js"></script>

<script src="/common/get-host-info.sub.js"></script>

</head>

<body>

<script>

async_test(t => {

    assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented");

    let destUrl = get_host_info().HTTP_REMOTE_ORIGIN

        + '/element-timing/resources/multiple-redirects.py?';

    destUrl += 'redirect_count=2';

    // The final resource has '*' in TAO header, so will not affect the result.

    destUrl += '&final_resource=/element-timing/resources/circle-tao.svg';

    destUrl += '&origin1=' + get_host_info().UNAUTHENTICATED_ORIGIN;

    destUrl += '&origin2=' + get_host_info().HTTP_REMOTE_ORIGIN;

    const taoCombinations = [

        {tao1: location.origin, tao2: location.origin, passes: false},

        {tao1: location.origin, tao2: get_host_info().HTTP_REMOTE_ORIGIN, passes: false},

        {tao1: location.origin, tao2: 'null', passes: true},

        {tao1: location.origin, tao2: '*', passes: true},

        {tao1: location.origin, tao2: location.origin, passes: false},

        {tao1: 'null', tao2: '*', passes: false},

        {tao1: '*', tao2: 'null', passes: true},

];

    function getURL(item) {

        return destUrl + '&tao1=' + item.tao1 + '&tao2=' + item.tao2;

    taoCombinations.forEach((item, index) => {

        const image = document.createElement('img');

        image.src = getURL(item);

        image.setAttribute('elementtiming', item.passes.toString());

        image.setAttribute('id', index);

        document.body.appendChild(image);

});

    let observed = new Array(taoCombinations.length).fill(false);

    let observedCount = 0;

    const beforeRender = performance.now();

    new PerformanceObserver(t.step_func(entries => {

        entries.getEntries().forEach(e => {

            const index = parseInt(e.id);

            assert_false(observed[index]);

            const item = taoCombinations[index];

            const url = getURL(item);

            checkElement(e, url, item.passes.toString(), e.id, item.passes ? beforeRender : 0,

                document.getElementById(e.id));

            observed[index] = true;

            observedCount++;

            if (observedCount === taoCombinations.length)

                t.done();

});

    })).observe({entryTypes: ['element']});

}, 'Cross-origin images with passing/failing TAO should/shouldn\'t have its renderTime set.');

</script>

</body>

</html>