2d.layer.blur-from-outside-canvas.no-clipping.layer-filter.tentative.html

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This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/layers/2d.layer.blur-from-outside-canvas.no-clipping.layer-filter.tentative.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->

<meta charset="UTF-8">

<link rel="match" href="2d.layer.blur-from-outside-canvas.no-clipping.layer-filter.tentative-expected.html">

<title>Canvas test: 2d.layer.blur-from-outside-canvas.no-clipping.layer-filter.tentative</title>

<h1>2d.layer.blur-from-outside-canvas.no-clipping.layer-filter.tentative</h1>

<p class="desc">Checks blur leaking inside from drawing outside the canvas</p>

<canvas id="canvas" width="200" height="200">

  <p class="fallback">FAIL (fallback content)</p>

</canvas>

<script>

  const canvas = new OffscreenCanvas(200, 200);

  const ctx = canvas.getContext('2d');

  // No clipping.

  ctx.beginLayer({filter: [ {name: 'gaussianBlur', stdDeviation: 30} ]});

  ctx.fillStyle = 'turquoise';

  ctx.fillRect(201, 50, 100, 100);

  ctx.fillStyle = 'indigo';

  ctx.fillRect(50, 201, 100, 100);

  ctx.fillStyle = 'orange';

  ctx.fillRect(-1, 50, -100, 100);

  ctx.fillStyle = 'brown';

  ctx.fillRect(50, -1, 100, -100);

  ctx.endLayer();

  const outputCanvas = document.getElementById("canvas");

  outputCanvas.getContext('2d').drawImage(canvas, 0, 0);

</script>