performance-navigation-timing-lock.https.tentative.window.js (1278B)
1 // META: title=Ensure that if WebLock is held upon entering bfcache, it cannot enter bfcache and gets reported. 2 // META: script=./test-helper.js 3 // META: script=/common/dispatcher/dispatcher.js 4 // META: script=/common/get-host-info.sub.js 5 // META: script=/common/utils.js 6 // META: script=/html/browsers/browsing-the-web/back-forward-cache/resources/rc-helper.js 7 // META: script=/html/browsers/browsing-the-web/remote-context-helper/resources/remote-context-helper.js 8 // META: timeout=long 9 10 promise_test(async t => { 11 const rcHelper = new RemoteContextHelper(); 12 // Open a window with noopener so that BFCache will work. 13 const rc1 = await rcHelper.addWindow( 14 /*config=*/ null, /*options=*/ {features: 'noopener'}); 15 const rc1_url = await rc1.executeScript(() => { 16 return location.href; 17 }); 18 19 // Request a WebLock. 20 let return_value = await rc1.executeScript(() => { 21 return new Promise((resolve) => { 22 navigator.locks.request('resource', () => { 23 resolve(42); 24 return new Promise(() => {}); 25 }); 26 }) 27 }); 28 assert_equals(return_value, 42); 29 30 // Check the BFCache result and the reported reasons. 31 await assertBFCacheEligibility(rc1, /*shouldRestoreFromBFCache=*/ false); 32 await assertNotRestoredFromBFCache(rc1, ['lock']); 33 });