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<!DOCTYPE html>
<title>Test GetFencedFrameMode() on a nested nested iframe.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="/common/dispatcher/dispatcher.js"></script>
<script src="resources/utils.js"></script>
<body>
<script>
promise_test(async () => {
// This test has the following setup:
// root -> (fencedframe) -> (first_iframe) -> (second_iframe)
// (second_iframe) will attempt an _unfencedTop navigation, which will result
// in GetFencedframeMode() being called. For this test to pass, it shouldn't
// timeout.
const fencedframe = await attachFencedFrameContext(
{generator_api: 'fledge'});
await fencedframe.execute(async () => {
const first_iframe = attachIFrameContext();
await first_iframe.execute(async () => {
const second_iframe = attachIFrameContext();
await second_iframe.execute(async () => {
// This call will cause FrameTreeNode::GetFencedFrameMode() to be called
// for second_iframe. If the browser process doesn't hang (and timeout
// the test), then the test passes.
window.open("https://www.google.com", "_unfencedTop");
});
});
});
}, 'Trigger GetFencedFrameMode() in a nested nested iframe');
</script>
</body>
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