iframe-with-download.html

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This WPT test may be referenced by the following Test IDs:
- /resource-timing/iframe-with-download.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>Test the sequence of events when reporting iframe timing.</title>

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

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

<script src="resources/resource-loaders.js"></script>

<body>

<script>

    promise_test(async t => {

        const href = new URL('resources/download.asis', location.href);

        const iframe = document.createElement('iframe');

        iframe.src = href;

        const errored = new Promise(resolve => iframe.addEventListener('error', resolve));

        const loaded = new Promise(resolve => iframe.addEventListener('load', resolve));

        document.body.appendChild(iframe);

        const timeout = 2000;

        t.add_cleanup(() => iframe.remove());

        const expired = new Promise(resolve => t.step_timeout(resolve, timeout));

        await Promise.any([loaded, expired, errored]);

        const entries = performance.getEntriesByType('resource').filter(({name}) => name.startsWith(href));

        assert_equals(entries.length, 0);

    }, 'Iframes should not report resource timing for non-handled mime-types (downloads)');

</script>

</body>