Codebase Browser
chromium
Go to App

chromium/third_party/blink/web_tests/external/wpt/navigation-api/navigate-event/signal-abort-preventDefault.html 

<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
promise_test(async t => {
  let abort_signal;
  let events = [];
  navigation.onnavigateerror = () => events.push("onnavigateerror");
  navigation.onnavigate = t.step_func(e => {
    abort_signal = e.signal;
    abort_signal.onabort = () => events.push("onabort");
    e.preventDefault();
  });

  await promise_rejects_dom(t, 'AbortError', navigation.navigate("?1").committed);
  assert_true(abort_signal.aborted);
  assert_array_equals(events, ["onabort", "onnavigateerror"]);
}, "event.preventDefault() signals event.signal");
</script>