| <!DOCTYPE html><!-- webkit-test-runner [ experimental:CSSPaintingAPIEnabled=true ] --> |
| <meta name="author" title="Justin Michaud" href="mailto:justin_michaud@webkit.org"> |
| <meta name="assert" content="Test that paint worklets don't leak"> |
| <link rel="help" content="https://drafts.css-houdini.org/css-paint-api-1/"> |
| |
| <style> |
| .paint { |
| background-image: paint(my-paint); |
| width: 150px; |
| height: 150px; |
| } |
| </style> |
| |
| <div class="paint"></div> |
| |
| <script id="code" type="text/worklet"> |
| const globalScope = this; |
| class MyPaint { |
| paint(ctx, geom, properties, args) { |
| const dummy = globalScope; // Leak! |
| ctx.fillStyle = "green"; |
| ctx.fillRect(0, 0, geom.width, geom.height); |
| } |
| } |
| MyPaint.createALeak = this; |
| registerPaint('my-paint', MyPaint); |
| </script> |
| |
| <script> |
| CSS.paintWorklet.addModule(document.getElementById('code').textContent); |
| </script> |
