<!DOCTYPE HTML> <meta name="timeout" content="long"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="/common/utils.js"></script> <script src="/common/dispatcher/dispatcher.js"></script> <script src="/html/browsers/browsing-the-web/back-forward-cache/resources/helper.sub.js"></script> <script> const reload = () => { window.location.reload(); }; const getNavigationId = () => { window.performance.mark('initial_load'); let entries = window.performance.getEntriesByType('mark'); return entries[entries.length - 1].navigationId; } promise_test(async t => { const pageA = new RemoteContext(token()); const pageB = new RemoteContext(token()); const urlA = executorPath + pageA.context_id; const urlB = originCrossSite + executorPath + pageB.context_id; // Open url A. window.open(urlA, '_blank', 'noopener') await pageA.execute_script(waitForPageShow); // Assert navigation id is 1 when the document is loaded first time. let navigationId = await pageA.execute_script(getNavigationId); assert_equals(navigationId, 1, 'Navigation Id should be 1 initially.'); // Navigate away to url B and back. await navigateAndThenBack(pageA, pageB, urlB); // Assert navigation id increments to 2 when the document is load from bfcache. navigationId = await pageA.execute_script(getNavigationId); assert_equals(navigationId, 2, 'Navigation Id should be 2 after increment.'); // Reload page. await pageA.execute_script(reload); await pageA.execute_script(waitForPageShow); // Assert navigation id is reset to 1 after reload. navigationId = await pageA.execute_script(getNavigationId); assert_equals(navigationId, 1, 'Navigation Id should be 1 after reload.'); }, 'Navigation Id should be reset to 1 after reload.'); </script>