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| 1 <!doctype html> |
| 2 <html> |
| 3 <head> |
| 4 <title>requestAnimationFrame must be triggered once</title> |
| 5 <script src="../../../../../resources/testharness.js"></script> |
| 6 <script src="../../../../../resources/testharnessreport.js"></script> |
| 7 <link rel="help" href="https://w3c.github.io/web-performance/specs/RequestAn
imationFrame/Overview.html#dom-windowanimationtiming-requestanimationframe"/> |
| 8 </head> |
| 9 <body> |
| 10 <div id="log"></div> |
| 11 <script> |
| 12 async_test(function (t) { |
| 13 t.step(function() { |
| 14 assert_false(document.hidden, "document.hidden must be exist and be fa
lse to run this test properly"); |
| 15 }); |
| 16 window.requestAnimationFrame(function () { |
| 17 t.step(function() { assert_true(true); t.done(); }); |
| 18 }); |
| 19 }, "requestAnimationFrame callback is invoked at least once before the tim
eout"); |
| 20 </script> |
| 21 </body> |
| 22 </html> |
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