| <!doctype html> |
| <meta charset="utf-8"> |
| <title>Joint session history should not override parent's state.</title> |
| <meta name="timeout" content="long"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <body> |
| <iframe id="frame" src="about:blank"></iframe> |
| <script> |
| async_test(function(t) { |
| // Setup. |
| var initialState = {foo: 'bar'}; |
| var newStateFromChild = {foo: 'baz'}; |
| var child = document.getElementById("frame"); |
| |
| // Child's initial state should be a default empty state. |
| assert_equals(child.contentWindow.history.state, null); |
| |
| // Perform navigation in the top-level container to set the state. |
| window.history.pushState(initialState, 'title'); |
| |
| // Validate initial state was properly set. |
| assert_object_equals(window.history.state, initialState); |
| |
| child.onload = t.step_func_done(() => { |
| // Child's initial state should be `null`. |
| assert_equals(child.contentWindow.history.state, null); |
| |
| // Navigate in the child. |
| child.contentWindow.history.pushState(newStateFromChild, 'title'); |
| |
| // Child's state should now equal the new state. |
| assert_object_equals(child.contentWindow.history.state, newStateFromChild); |
| // Parent's state should still be preserved, having exactly the same state as it |
| // had before parent navigated. |
| assert_object_equals(window.history.state, initialState); |
| }) |
| child.src = "joint-session-history-filler.html"; |
| }); |
| </script> |
| </body> |
