opener-closed.html (1237B)
1 <!doctype html> 2 <meta charset="utf-8"> 3 <html> 4 <head> 5 <title>Auxiliary Browsing Contexts: window.opener when Opener Removed/Closed</title> 6 <script src="/resources/testharness.js"></script> 7 <script src="/resources/testharnessreport.js"></script> 8 <script src="/common/PrefixedLocalStorage.js"></script> 9 </head> 10 <body> 11 <div id="log"></div> 12 <script> 13 var prefixedLocalStorage; 14 setup (() => prefixedLocalStorage = new PrefixedLocalStorageTest()); 15 async_test(t => { 16 t.add_cleanup (() => prefixedLocalStorage.cleanup()); 17 var a = document.createElement('a'); 18 a.href = prefixedLocalStorage.url('resources/open-closer.html'); 19 a.target = '_blank'; 20 prefixedLocalStorage.onSet('openerIsNull', t.step_func_done(e => { 21 // The window for this auxiliary browsing context's opener 22 // has been closed and discarded, so the aux browsing context 23 // should now report `null` for `window.opener` 24 assert_equals(e.newValue, 'true'); 25 })); 26 document.body.append(a); 27 a.click(); 28 }, 'An auxiliary browsing context should report `null` for `window.opener` when that browsing context is discarded'); 29 </script> 30 </body> 31 </html>