opaque-origin-page.html

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<!DOCTYPE html>

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

<!-- Put this page in a sandbox to give it an opaque origin -->

<script type="module">

import { ensureWindowLoadEventFired } from "../../resources/helpers.mjs";

promise_test(async t => {

  // Wait for after the load event so that the navigation doesn't get converted

  // into a replace navigation.

  await ensureWindowLoadEventFired(t);

  location.hash = "#1";

  await new Promise(resolve => window.onhashchange = resolve);

  location.hash = "#2";

  await new Promise(resolve => window.onhashchange = resolve);

  history.back();

  await new Promise(resolve => window.onhashchange = resolve);

  assert_equals(location.hash, "#1");

  assert_equals(navigation.currentEntry, null);

  assert_equals(navigation.entries().length, 0);

  assert_false(navigation.canGoBack);

  assert_false(navigation.canGoForward);

}, "navigation.currentEntry/entries()/canGoBack/canGoForward in an opaque origin iframe");

</script>