| <!doctype html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="../navigation-methods/return-value/resources/helpers.js"></script> |
| <script> |
| promise_test(async t => { |
| // Wait for after the load event so that the navigation doesn't get converted |
| // into a replace navigation. |
| await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0)); |
| |
| await navigation.navigate("#").finished; |
| assert_equals(navigation.entries().length, 2); |
| assert_equals(navigation.currentEntry.index, 1); |
| |
| navigation.onnavigate = e => e.preventDefault(); |
| |
| navigation.onnavigateerror = t.step_func(e => { |
| assert_equals(e.constructor, ErrorEvent); |
| assert_equals(e.filename, location.href); |
| navigateerror_called = true; |
| }); |
| await assertBothRejectDOM(t, navigation.back(), "AbortError"); |
| assert_equals(navigation.currentEntry.index, 1); |
| assert_true(navigateerror_called); |
| }, "navigation.back() same-document preventDefault"); |
| </script> |
