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<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="utils.js"></script>
<title>history-back-and-forward-should-not-work-in-fenced-tree-inner</title>
<body>
<script>
// This is a helper file that will serve as the document loaded inside
// a fenced frame by 'history-back-and-forward-should-not-work-in-fenced
// -tree' Once loaded, it will sequentially perform the back and forward
// history navigations to observe whether these methods were successfuly
// restricted for the fenced tree.
const [history_navigation_performed_key, outer_page_ready_key,
embed_scope] = parseKeylist();
(async function () {
const url = new URL(location.href);
const test = url.searchParams.get("test");
writeValueToServer(history_navigation_performed_key, "yes");
// Execute history.back() within fenced frame and iframe.
await nextValueFromServer(outer_page_ready_key);
window.history.back();
writeValueToServer(history_navigation_performed_key, "yes");
// Execute history.forward() within fenced frame and iframe.
await nextValueFromServer(outer_page_ready_key);
window.history.forward();
writeValueToServer(history_navigation_performed_key, "yes");
if (embed_scope === "outerPage::fencedFrame::iframe") return;
const iframe = document.createElement('iframe');
const iframe_embed_scope = "outerPage::fencedFrame::iframe";
iframe.src = generateURL(
"history-back-and-forward-should-not-work-in-fenced-tree-" +
"inner.html",
[history_navigation_performed_key, outer_page_ready_key,
iframe_embed_scope]);
document.body.append(iframe);
})();
</script>
</body>
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