| <!DOCTYPE html> <!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <style> |
| * { |
| box-sizing: border-box; |
| } |
| |
| #scroller { |
| height: 500px; |
| width: 600px; |
| margin: 10px; |
| overflow-x: hidden; |
| overflow-y: auto; |
| position: relative; |
| perspective-origin: top left; |
| perspective: 100px; |
| } |
| |
| .parallax { |
| width: 100%; |
| height: 1200px; |
| margin: 20px; |
| transform-origin: top left; |
| transform: translate3d(0, 0, -50px); |
| background-color: green; |
| } |
| |
| .spacer { |
| height: 2000px; |
| width: 100px; |
| } |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| window.addEventListener('load', async () => { |
| let scroller = document.getElementById('scroller'); |
| scroller.scrollTop = 900; |
| |
| if (window.testRunner) |
| document.getElementById('layers').textContent = window.internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_TILE_CACHES + internals.LAYER_TREE_INCLUDES_VISIBLE_RECTS); |
| |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div id="scroller"> |
| <div class="parallax"> </div> |
| <div class="spacer"></div> |
| </div> |
| <pre id="layers"></pre> |
| </body> |
| </html> |
| |
