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Test Info:

<!DOCTYPE html>
<link rel="match" href="unclosed-layers-expected.html">
<title>Canvas test: unclosed-layers</title>
<h1>unclosed-layers</h1>
<p class="desc">Check that unclosed layers aren't rendered.</p>
<canvas id="canvas" width="200" height="200">
<p class="fallback">FAIL (fallback content)</p>
</canvas>
<script>
const canvas = document.getElementById("canvas");
const ctx = canvas.getContext('2d');
ctx.fillStyle = 'purple';
ctx.fillRect(60, 60, 75, 50);
ctx.beginLayer({filter: {name: 'dropShadow', dx: -2, dy: 2}});
ctx.fillRect(40, 40, 75, 50);
ctx.fillStyle = 'grey';
ctx.fillRect(50, 50, 75, 50);
</script>