1 files changed, 20 insertions, 0 deletions
diff --git a/layout/reftests/svg/marker-dynamic-opacity.html b/layout/reftests/svg/marker-dynamic-opacity.html
new file mode 100644
index 0000000000..d4887fe808
--- /dev/null
+++ b/layout/reftests/svg/marker-dynamic-opacity.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <svg>
+    <defs>
+      <marker id="Triangle" viewBox="0 0 10 10" refX="1" refY="5"
+              markerWidth="6" markerHeight="6" orient="auto">
+        <path d="M 0 0 L 10 5 L 0 10 z" />
+      </marker>
+    </defs>
+    <polyline points="10,90 50,80 90,20" fill="none" stroke="black"
+              stroke-width="2" marker-end="url(#Triangle)" />
+  </svg>
+  <script>
+    onload = function() {
+      var m = document.querySelector("marker");
+      m.style.opacity = 0.2;
+      document.documentElement.className = "";
+    }
+  </script>
+</html>