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diff --git a/testing/web-platform/tests/html/canvas/element/filters/2d.filter.layers.gaussianBlur-expected.html b/testing/web-platform/tests/html/canvas/element/filters/2d.filter.layers.gaussianBlur-expected.html
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+++ b/testing/web-platform/tests/html/canvas/element/filters/2d.filter.layers.gaussianBlur-expected.html
@@ -0,0 +1,85 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>Canvas test: 2d.filter.layers.gaussianBlur</title>
+<h1 style="font-size: 20px;">2d.filter.layers.gaussianBlur</h1>
+<p class="desc">Test CanvasFilter() with gaussianBlur.</p>
+
+<div style="display: grid; grid-gap: 4px;
+            grid-template-columns: repeat(5, max-content);
+            font-size: 13px; text-align: center;">
+<span>
+  <div>x-only</div>
+  <div style="width: 100px; height: 100px; outline: 1px solid">
+    <svg xmlns="http://www.w3.org/2000/svg"
+         width="100" height="100"
+         color-interpolation-filters="sRGB">
+      <filter id="blur0" x="-50%" y="-50%" width="200%" height="200%">
+        <feGaussianBlur stdDeviation="4 0" />
+      </filter>
+      <rect x="25" y="25" width="50" height="50"
+            fill="teal" filter="url(#blur0)" />
+    </svg>
+  </div>
+</span>
+
+<span>
+  <div>mostly-x</div>
+  <div style="width: 100px; height: 100px; outline: 1px solid">
+    <svg xmlns="http://www.w3.org/2000/svg"
+         width="100" height="100"
+         color-interpolation-filters="sRGB">
+      <filter id="blur1" x="-50%" y="-50%" width="200%" height="200%">
+        <feGaussianBlur stdDeviation="4 1" />
+      </filter>
+      <rect x="25" y="25" width="50" height="50"
+            fill="teal" filter="url(#blur1)" />
+    </svg>
+  </div>
+</span>
+
+<span>
+  <div>isotropic</div>
+  <div style="width: 100px; height: 100px; outline: 1px solid">
+    <svg xmlns="http://www.w3.org/2000/svg"
+         width="100" height="100"
+         color-interpolation-filters="sRGB">
+      <filter id="blur2" x="-50%" y="-50%" width="200%" height="200%">
+        <feGaussianBlur stdDeviation="4 4" />
+      </filter>
+      <rect x="25" y="25" width="50" height="50"
+            fill="teal" filter="url(#blur2)" />
+    </svg>
+  </div>
+</span>
+
+<span>
+  <div>mostly-y</div>
+  <div style="width: 100px; height: 100px; outline: 1px solid">
+    <svg xmlns="http://www.w3.org/2000/svg"
+         width="100" height="100"
+         color-interpolation-filters="sRGB">
+      <filter id="blur3" x="-50%" y="-50%" width="200%" height="200%">
+        <feGaussianBlur stdDeviation="1 4" />
+      </filter>
+      <rect x="25" y="25" width="50" height="50"
+            fill="teal" filter="url(#blur3)" />
+    </svg>
+  </div>
+</span>
+
+<span>
+  <div>y-only</div>
+  <div style="width: 100px; height: 100px; outline: 1px solid">
+    <svg xmlns="http://www.w3.org/2000/svg"
+         width="100" height="100"
+         color-interpolation-filters="sRGB">
+      <filter id="blur4" x="-50%" y="-50%" width="200%" height="200%">
+        <feGaussianBlur stdDeviation="0 4" />
+      </filter>
+      <rect x="25" y="25" width="50" height="50"
+            fill="teal" filter="url(#blur4)" />
+    </svg>
+  </div>
+</span>
+
+</div>