| <!doctype html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <iframe id="iframe" src="/common/blank.html"></iframe> |
| <script> |
| |
| function waitOnLoad(target) { |
| return new Promise((resolve, reject) => { |
| target.onload = resolve; |
| }); |
| } |
| |
| promise_test(async t => { |
| await waitOnLoad(window); |
| iframe.contentWindow.appHistory.navigate("?1"); |
| await waitOnLoad(iframe); |
| assert_equals(iframe.contentWindow.appHistory.entries().length, 2); |
| assert_equals(iframe.contentWindow.appHistory.canGoBack, true); |
| const cached_app_history = iframe.contentWindow.appHistory; |
| iframe.remove(); |
| assert_equals(cached_app_history.canGoBack, false); |
| }, "canGoBack should return false if the document is not fully active"); |
| |
| </script> |
