diff --git a/testing/web-platform/tests/svg/text/reftests/text-huge-font-size-crash.html b/testing/web-platform/tests/svg/text/reftests/text-huge-font-size-crash.html
new file mode 100644
index 000000000000..7f248d87d241
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-huge-font-size-crash.html
@@ -0,0 +1,9 @@
+<script>
+  function run() { svg2.setAttribute("x", "845em"); }
+</script>
+<body onload=run()>
+  <svg clip-path="url(#svg3)">
+    <text id="svg1" dx="3995">Test</text>
+    <use id="svg2" xlink:href="#svg1"
+      font-size="24047101539296409820906557248093691380127756136688827495876060258460376087850741612624122674697995234250631412935683303715374150921263384856574947450705899861899966578158801753087633492936609359438374778849560%"
+    />
