| <!doctype html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="../navigation-methods/return-value/resources/helpers.js"></script> |
| <body> |
| <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("#1").finished; |
| |
| let navigateerror_called = false; |
| navigation.onnavigateerror = t.step_func(() => { |
| navigateerror_called = true; |
| assert_equals(location.hash, "#1"); |
| }); |
| |
| // Go back and wait for the navigate event to fire. This traversal will be deferred. |
| let promises_should_not_commit = assertBothRejectDOM(t, navigation.back(), "AbortError"); |
| navigation.addEventListener("navigate", e => e.intercept({ precommitHandler: () => new Promise(r => t.step_timeout(r, 1000)) }), { once: "true" }); |
| await new Promise(resolve => navigation.addEventListener("navigate", resolve, { once: "true" })); |
| |
| // While the traversal is deferred, start a new navigation and commit immediately. |
| navigation.addEventListener("navigate", e => e.intercept(), { once: "true" }); |
| let promises_fulfilled = navigation.navigate("#2"); |
| |
| await promises_should_not_commit; |
| await assertBothFulfill(t, promises_fulfilled, navigation.currentEntry); |
| |
| assert_equals(location.hash, "#2"); |
| assert_true(navigateerror_called); |
| }, "Cancel a precommitHandler traversal before commit by starting a new navigation"); |
| </script> |
| </body> |
