| <!doctype HTML> |
| <html class="reftest-wait"> |
| <meta charset="utf8"> |
| <title>Content Visibility: hidden canvas</title> |
| <link rel="author" title="Martin Robinson" href="mailto:[email protected]"> |
| <link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility"> |
| <link rel="match" href="content-visibility-canvas-ref.html"> |
| <meta name="assert" content="content-visibility hidden canvas element does not paint replaced content"> |
| |
| <script src="/common/reftest-wait.js"></script> |
| |
| <style> |
| canvas { |
| width: 200px; |
| height: 200px; |
| background: green; |
| border: 1px solid black; |
| } |
| .hidden { |
| content-visibility: hidden; |
| } |
| </style> |
| |
| <canvas id="canvas"> |
| </canvas> |
| |
| <script> |
| async function runTest() { |
| var context = canvas.getContext("2d"); |
| context.fillStyle = "red"; |
| context.fillRect(0, 0, canvas.width, canvas.height); |
| |
| canvas.classList.add("hidden"); |
| requestAnimationFrame(takeScreenshot); |
| } |
| |
| window.onload = () => { |
| requestAnimationFrame(() => { |
| requestAnimationFrame(runTest); |
| }); |
| }; |
| </script> |
| </html> |
