same-document-traversal-cross-document-nav.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:
- /html/browsers/browsing-the-web/overlapping-navigations-and-traversals/same-document-traversal-cross-document-nav.html - WPT Dashboard Interop Dashboard

<!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>