| <html> |
| <head> |
| <script> |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function log(message) { |
| var console = document.getElementById('log'); |
| console.appendChild(document.createTextNode(message)); |
| console.appendChild(document.createElement('br')); |
| } |
| |
| function loaded() { |
| var canvas = document.getElementById('canvas'); |
| var ctx = canvas.getContext("2d"); |
| var img = document.getElementById('img'); |
| log('Starting...'); |
| |
| // This should taint the canvas by rendering an SVG on to it via the pattern |
| // route. |
| var p = ctx.createPattern(img, 'repeat'); |
| ctx.fillStyle = p; |
| ctx.fillRect(0, 0, 100, 100); |
| |
| try { |
| // This should fail as the canvas should be tainted. |
| var data = ctx.getImageData(0, 0, 10, 10); |
| log('Oh dear -- missing exception!'); |
| } catch (e) { |
| log('Exception: ' + e.name); |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| } |
| } |
| </script> |
| </head> |
| <body> |
| Let's check that rendering an SVG pattern to a canvas taints it! |
| <p> |
| See https://bugs.webkit.org/show_bug.cgi?id=36838 |
| <div id="log"></div> |
| <canvas id="canvas" width="100" height="100"></canvas> |
| <img id="img" onload="loaded()" src="resources/empty.svg"></img> |
| </body> |
