| <!DOCTYPE html> <!-- webkit-test-runner [ internal:AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <meta name="viewport" content="width=device-width"> |
| <title></title> |
| <style> |
| .scroller { |
| margin: 10px; |
| overflow: scroll; |
| width: 200px; |
| height: 200px; |
| border: 1px solid black; |
| opacity: 0.8; |
| } |
| |
| .absolute { |
| position: absolute; |
| top: 100px; |
| width: 300px; |
| height: 20px; |
| background-color: green; |
| padding: 10px; |
| } |
| |
| .spacer { |
| height: 800px; |
| } |
| |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| window.addEventListener("load", () => { |
| if (window.internals) |
| document.getElementById("layers").innerText = window.internals.layerTreeAsText(document); |
| }, false); |
| </script> |
| <body> |
| <div class='scroller'> |
| <div class="spacer"> |
| <div class='absolute'>This layer should be composited.</div> |
| </div> |
| <pre id="layers">Layer tree goes here</pre> |
| </body> |
| </html> |
