| <!doctype html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <iframe id="iframe" src="/common/blank.html"></iframe> |
| <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(r => window.onload = () => t.step_timeout(r, 0)); |
| |
| iframe.contentWindow.location.search = "?1"; |
| await new Promise(r => iframe.onload = () => t.step_timeout(r, 0)); |
| |
| const keyFor1 = iframe.contentWindow.navigation.currentEntry.key; |
| |
| iframe.contentWindow.location.search = "?2"; |
| await new Promise(r => iframe.onload = () => t.step_timeout(r, 0)); |
| iframe.contentWindow.location.search = "?3"; |
| await new Promise(r => iframe.onload = () => t.step_timeout(r, 0)); |
| |
| iframe.contentWindow.navigation.traverseTo(keyFor1); |
| await new Promise(r => iframe.onload = () => t.step_timeout(r, 0)); |
| |
| assert_equals((new URL(iframe.contentWindow.location.href)).search, "?1"); |
| |
| assert_equals(iframe.contentWindow.navigation.entries().length, 4); |
| const [, entry2, entry3] = iframe.contentWindow.navigation.entries(); |
| |
| entry2.ondispose = t.unreached_func("entry2 dispose must not fire"); |
| entry2.addEventListener("dispose", t.unreached_func("entry3 dispose must not fire")); |
| |
| iframe.contentWindow.navigation.navigate("/common/blank.html?fork"); |
| await new Promise(r => iframe.onload = r); |
| |
| // Test passes if we reached this point with no dispose events firing. |
| }, "No dispose events are fired due to cross-document forward pruning"); |
| </script> |
