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Test Info:
- Manifest: layout/reftests/canvas/reftest.list
<!DOCTYPE html>
<html>
<body>
<canvas id="c" width="200" height="200"></canvas>
<script>
const c = document.getElementById("c");
const ctx = c.getContext("2d");
ctx.translate(20, 20);
ctx.beginPath();
ctx.arc(0, 0, 15, 0, 2 * Math.PI);
ctx.clip();
ctx.beginPath();
ctx.arc(0, 0, 10, 0, 2 * Math.PI);
ctx.lineWidth = 2;
ctx.globalAlpha = 0.5;
ctx.strokeStyle = '#00ff00';
ctx.stroke();
</script>
</body>
</html>