diff --git a/layout/svg/crashtests/1234726-1.svg b/layout/svg/crashtests/1234726-1.svg
new file mode 100644
index 000000000000..ec807e2abaed
--- /dev/null
+++ b/layout/svg/crashtests/1234726-1.svg
@@ -0,0 +1,13 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+<script>
+
+window.addEventListener("load", function() {
+    document.documentElement.style.fontSize = "70%";
+    document.documentElement.setAttribute("transform", "scale(2)");
+    var filt = document.createElementNS("http://www.w3.org/2000/svg", "filter");
+    filt.style.borderWidth = "2rem";
+    document.documentElement.appendChild(filt);
+}, false);
+
+</script>
+</svg>
diff --git a/layout/svg/crashtests/crashtests.list b/layout/svg/crashtests/crashtests.list
index 5c458e2b1bf4..921245db9735 100644
--- a/layout/svg/crashtests/crashtests.list
+++ b/layout/svg/crashtests/crashtests.list
@@ -197,6 +197,7 @@ load 1156581-1.svg
 load 1182496-1.html
 load 1209525-1.svg
 load 1223281-1.svg
+load 1234726-1.svg
 load 1322537-1.html
 load 1322537-2.html
 load 1322852.html