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diff --git a/layout/reftests/svg/filters/svg-filter-chains/dont-clip-previous-primitives.svg b/layout/reftests/svg/filters/svg-filter-chains/dont-clip-previous-primitives.svg
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+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<svg id="svg-root"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink">
+
+  <g id="testmeta">
+    <title>SVG Filter Chains: Don't Clip Primitives in Previous Filters to Subsequent Filter Regions</title>
+    <link rel="copyright"
+          href="http://www.w3.org/Graphics/SVG/Test/Copyright"/>
+    <link rel="license"
+          href="http://www.w3.org/Consortium/Legal/2008/03-bsd-license.html"/>
+    <link rel="author"
+          title="Max Vujovic"
+          href="mailto:mvujovic@adobe.com"/>
+    <link rel="help"
+          href="http://dev.w3.org/fxtf/filters/#FilterPrimitiveSubRegion"/>
+    <link rel="match"
+          href="dont-clip-previous-primitives.svg" />
+    <metadata class="flags">namespace svg</metadata>
+    <desc class="assert">
+      In an SVG filter chain, this test verifies that a second filter's filter
+      region does not clip the primitives inside a first filter. If the test
+      passes, you should see a green square.
+    </desc>
+  </g>
+
+  <g id="test-body-content">
+    <!-- Use a wide filter region. -->
+    <filter id="f1" x="0" y="0" width="200" height="100" filterUnits="userSpaceOnUse">
+      <!-- Create a red square at x=100. -->
+      <feFlood flood-color="red" x="100" y="0" width="100" height="100"/>
+      <!-- Offset the red square left to x=0. -->
+      <feOffset dx="-100" x="0" y="0" width="200" height="100"/>
+    </filter>
+    <!--
+      Use a less wide filter region. The intermediate results of the previous
+      filter do not fit in this filter region, but that shouldn't matter. The
+      previous filter's intermediate results should not be affected by this
+      filter region. The final result of the previous filter should fit in this
+      filter region.
+    -->
+    <filter id="f2" x="0" y="0" width="100" height="100" filterUnits="userSpaceOnUse">
+      <!-- Turn the red square into a green square. -->
+      <feColorMatrix type="hueRotate" values="90"/>
+    </filter>
+    <rect x="0" y="0" width="100" height="100" filter="url(#f1) url(#f2)" fill="blue"/>
+  </g>
+</svg>