element-request-fullscreen-active-document.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:
- /fullscreen/api/element-request-fullscreen-active-document.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>

    Element#requestFullscreen() when the document is not the active document

</title>

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

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

<div id="log"></div>

<iframe allowfullscreen></iframe>

<script>

    promise_test(async (t) => {

        const iframe = document.querySelector("iframe");

        const typeErrorConstructor = iframe.contentWindow.TypeError;

        const documentBeforeNav = iframe.contentDocument;

        documentBeforeNav.onfullscreenchange = t.unreached_func(

            "fullscreenchange event"

);

        documentBeforeNav.onfullscreenerror = t.unreached_func(

            "fullscreenerror event"

);

        await new Promise((r) => {

            iframe.src = "/common/blank.html";

            iframe.onload = r;

});

        await promise_rejects_js(

t,

            typeErrorConstructor,

            documentBeforeNav.documentElement.requestFullscreen()

);

        // Per spec the fullscreenerror event should be fired at the next animation

        // frame, but at least Gecko and WebKit will instead effectively do "queue a

        // task to fire ...". Use both rAF and setTimeout to fail even if the timing

        // of the (unexpected) event isn't as expected.

        await new Promise((resolve) => {

            requestAnimationFrame(() => {

                t.step_timeout(resolve);

});

});

});

</script>