navigation-api/navigation-history-entry/entries-in-new-srcdoc-iframe.html

<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<iframe id="i" srcdoc="new"></iframe>

<script>
promise_test(async t => {
  await new Promise(resolve => window.onload = resolve);

  assert_not_equals(i.contentWindow.navigation.currentEntry, null);
  assert_array_equals(i.contentWindow.navigation.entries(), [i.contentWindow.navigation.currentEntry]);

  assert_equals(i.contentWindow.navigation.currentEntry.url, "about:srcdoc");
}, "entries() and currentEntry should be set in a new srcdoc iframe");
</script>