| <!DOCTYPE html> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <script type="text/javascript"> |
| var test = async_test("Tests that children of a display:none iframe do not run animations"); |
| |
| function go() { |
| // Wait a couple of frames for the animation inside the iframe to progress. |
| requestAnimationFrame(test.step_func(() => { |
| requestAnimationFrame(test.step_func_done(() => { |
| var iframe = document.getElementById("iframe"); |
| iframe.style.display = "block"; |
| var innerDoc = iframe.contentDocument; |
| var target = innerDoc.getElementById('target'); |
| |
| // If the animation has been running, then we expect "left" to be |
| // non-zero. |
| assert_equals(parseInt(getComputedStyle(target).left, 10), 0); |
| })); |
| })); |
| }; |
| </script> |
| <body onload="go()"> |
| <iframe id="iframe" style="display:none" src="resources/frame_with_animation.html"></iframe> |
| </body> |
