| <!DOCTYPE html> |
| <title>Canvas test: security.pattern.cross</title> |
| <meta name="author" content="Philip Taylor"> |
| <script src="../common/canvas-tests.js"></script> |
| <link rel="stylesheet" href="../common/canvas-tests.css"> |
| <body class="show_output"> |
| |
| <h1><a href="index.security.html">security</a>.<a href="index.security.pattern.html">pattern</a>.cross</h1> |
| <p class="desc">Using an unclean pattern makes the target canvas origin-unclean, not the pattern canvas</p> |
| |
| <div class="refs">Spec references: |
| <ul> |
| <li><a href="../annotated-spec/canvas.html#testrefs.security.start">security.start</a> |
| </ul> |
| </div> |
| |
| <p class="output">Actual output:</p> |
| <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> |
| |
| <ul id="d"></ul> |
| <script> |
| _addTest(function(canvas, ctx) { |
| |
| var canvas2 = document.createElement('canvas'); |
| canvas2.width = 100; |
| canvas2.height = 50; |
| var ctx2 = canvas2.getContext('2d'); |
| var p = ctx2.createPattern(document.getElementById('yellow.png'), 'repeat'); |
| ctx.fillStyle = p; |
| ctx.fillRect(0, 0, 100, 50); |
| try { var _thrown = false; canvas.toDataURL(); } catch (e) { _thrown = true; } finally { _assert(_thrown, "should throw exception: canvas.toDataURL()"); } |
| try { var _thrown = false; ctx.getImageData(0, 0, 1, 1); } catch (e) { _thrown = true; } finally { _assert(_thrown, "should throw exception: ctx.getImageData(0, 0, 1, 1)"); } |
| canvas2.toDataURL(); |
| ctx2.getImageData(0, 0, 1, 1); |
| |
| |
| }); |
| </script> |
| <img src="../resources/yellow.png" id="yellow.png" class="resource"> |
| |
