| <html> |
| <head> |
| <style> |
| body { |
| height: 5000px; |
| background-color: red; |
| overflow: hidden; |
| } |
| |
| #trigger { |
| -webkit-transform:translateZ(0); |
| } |
| |
| #overlap { |
| width: 1000px; |
| height: 1000px; |
| background-color: green; |
| position: fixed; |
| left: 0px; |
| top: 0px; |
| } |
| </style> |
| </head> |
| <script> |
| async function doTest() { |
| if (window.testRunner) |
| testRunner.dumpAsText(true); |
| window.scrollTo(0, 2000); |
| if (window.testRunner) |
| await testRunner.displayAndTrackRepaints(); |
| window.scrollTo(0, 1800); |
| } |
| window.addEventListener("load", doTest, false); |
| </script> |
| <body> |
| <div id="trigger"></div> |
| <div id="overlap"></div> |
| </body> |
| </html> |
