element-ready-check-iframe-child.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-ready-check-iframe-child.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Element ready check for child of iframe</title>

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

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

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

<script src="/resources/testdriver-vendor.js"></script>

<script src="../trusted-click.js"></script>

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

<iframe><!-- script inserts child here --></iframe>

<script>

    promise_test(async (t) => {

        document.onfullscreenerror = t.unreached_func("fullscreenerror event");

        const div = document.createElement("div");

        document.querySelector("iframe").appendChild(div);

        await Promise.all([

            trusted_request(div, document.body),

            fullScreenChange(),

]);

        assert_equals(document.fullscreenElement, div);

    }, "Element ready check for child of iframe");

</script>