manual-scroll-after-resolve.html (1049B)
1 <!doctype html> 2 <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1"> 3 <script src="/resources/testharness.js"></script> 4 <script src="/resources/testharnessreport.js"></script> 5 <body> 6 <div style="height: 200vh; width: 200vw;"></div> 7 <div id="frag"></div> 8 <script> 9 promise_test(async t => { 10 // Wait for after the load event so that the navigation doesn't get converted 11 // into a replace navigation. 12 await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0)); 13 assert_equals(window.scrollY, 0); 14 await navigation.navigate("#frag").finished; 15 assert_not_equals(window.scrollY, 0); 16 17 let navigate_event; 18 navigation.onnavigate = e => { 19 navigate_event = e; 20 e.intercept({ scroll: "manual" }); 21 }; 22 await navigation.back().finished; 23 assert_not_equals(window.scrollY, 0); 24 assert_throws_dom("InvalidStateError", () => navigate_event.scroll()); 25 assert_not_equals(window.scrollY, 0); 26 }, "scroll: scroll() should throw after a navigation finished promise fulfills"); 27 </script> 28 </body>