| <!-- |
| Calculating collapsed borders for big tables is expensive, so we cache them and recalculate when needed. |
| Here we append new cell, expect that cache is invalidated and paint produces expected image. |
| --> |
| <html> |
| <head> |
| <title></title> |
| <link rel="stylesheet" href="resources/cached.css"> |
| <script type="text/javascript"> |
| function test() { |
| document.body.offsetTop; |
| if (window.testRunner) |
| testRunner.displayAndTrackRepaints(); |
| newCell = document.createElement("td"); |
| newCell.style.borderLeftWidth = "6px"; |
| newCell.style.borderLeftStyle = "solid"; |
| newCell.style.borderLeftColor = "yellow"; |
| document.getElementById("row").appendChild(newCell); |
| } |
| </script> |
| </head> |
| <body onload="test()"> |
| <table style="border-collapse:collapse; border:2px solid blue"> |
| <tr id="row"> |
| <td style="border:4px solid lime"/> |
| </tr> |
| </table> |
| </body> |
| </html> |
| |
