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<!DOCTYPE html>
<meta charset="utf-8">
<title>Cross-document navigations during same-document traversals</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<!--
The spec says that navigations are ignored if there is an ongoing traversal.
-->
<body>
<script type="module">
import { createIframe, delay, waitForPotentialNetworkLoads } from "./resources/helpers.mjs";
promise_test(async t => {
const iframe = await createIframe(t);
// Setup
iframe.contentWindow.location.hash = "#1";
await delay(t, 0);
iframe.contentWindow.location.hash = "#2";
await delay(t, 0);
iframe.contentWindow.history.back();
assert_equals(iframe.contentWindow.location.hash, "#2", "must not go back synchronously");
iframe.contentWindow.location.search = "?1";
assert_equals(iframe.contentWindow.location.search, "", "must not navigate synchronously (search)");
assert_equals(iframe.contentWindow.location.hash, "#2", "must not navigate synchronously (hash)");
// Eventually ends up on #1.
await t.step_wait(() => iframe.contentWindow.location.hash === "#1", "traversal");
// Never loads a different document.
iframe.onload = t.unreached_func("load event");
await waitForPotentialNetworkLoads(t);
assert_equals(iframe.contentWindow.location.search, "", "must stay on #2 (search)");
assert_equals(iframe.contentWindow.location.hash, "#2", "must stay on #2 (hash)");
}, "same-document traversals are not canceled by cross-document navigations");
</script>
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