<!DOCTYPE html> <html class="reftest-wait"> <link rel="help" href="https://drafts.css-houdini.org/css-paint-api/"> <link rel="match" href="parse-input-arguments-ref.html"> <style> .container { width: 100px; height: 100px; } #canvas-geometry { background-image: paint(geometry); } </style> <script src="/common/reftest-wait.js"></script> <script src="/common/worklet-reftest.js"></script> <body> <div id="canvas-geometry" class="container"></div> <script id="code" type="text/worklet"> var testsPassed = false; try { registerPaint('foo', class { // Setting anything other than alpha should not throw exception, and // the alpha value should fall back to default, which is true. static get contextOptions() { return {bogus: true}; } paint() {} }); testsPassed = true; } catch(ex) { testsPassed = false; } registerPaint('geometry', class { paint(ctx, geom) { if (testsPassed) ctx.fillStyle = 'green'; else ctx.fillStyle = 'red'; ctx.fillRect(0, 0, geom.width, geom.height); } }); </script> <script> importWorkletAndTerminateTestAfterAsyncPaint(CSS.paintWorklet, document.getElementById('code').textContent); </script> </body> </html>