navigate-destination-after-detach.html (1406B)
1 <!doctype html> 2 <script src="/resources/testharness.js"></script> 3 <script src="/resources/testharnessreport.js"></script> 4 <iframe id="i" src="/common/blank.html"></iframe> 5 <script> 6 promise_test(async t => { 7 // Wait for after the load event so that the navigation doesn't get converted 8 // into a replace navigation. 9 await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0)); 10 11 let destination_key = i.contentWindow.navigation.currentEntry.key; 12 let destination_id = i.contentWindow.navigation.currentEntry.id; 13 let destination_index = i.contentWindow.navigation.currentEntry.index; 14 await i.contentWindow.navigation.navigate("#1").finished; 15 16 let back_destination; 17 i.contentWindow.navigation.onnavigate = e => back_destination = e.destination; 18 await i.contentWindow.navigation.back().finished; 19 20 // Before detach, key/id/index are valid. 21 assert_equals(back_destination.key, destination_key); 22 assert_equals(back_destination.id, destination_id); 23 assert_equals(back_destination.index, destination_index); 24 25 i.remove(); 26 27 // After detach, key/id/index are invalid, but the url is still valid. 28 assert_equals(back_destination.key, ""); 29 assert_equals(back_destination.id, ""); 30 assert_equals(new URL(back_destination.url).pathname, "/common/blank.html"); 31 assert_equals(back_destination.index, -1); 32 }, "navigate event destination after iframe detach"); 33 </script>