1 files changed, 38 insertions, 0 deletions
diff --git a/layout/mathml/crashtests/375562-1.xhtml b/layout/mathml/crashtests/375562-1.xhtml
new file mode 100644
index 0000000000..491b313597
--- /dev/null
+++ b/layout/mathml/crashtests/375562-1.xhtml
@@ -0,0 +1,38 @@
+<html xmlns="http://www.w3.org/1999/xhtml" class="reftest-wait">
+<head>
+<script>
+
+var HTML_NS = "http://www.w3.org/1999/xhtml";
+
+function boom()
+{
+  var a = document.getElementById("a");
+  var plus = document.getElementById("plus");
+  var frameset = document.createElementNS(HTML_NS, "frameset");
+  
+  document.body.style.width = "300px";
+
+  a.parentNode.removeChild(a);
+  
+  plus.appendChild(frameset);
+  
+  document.documentElement.removeAttribute("class");
+}
+
+</script>
+</head>
+
+<body onload="setTimeout(boom, 30);">
+
+<div><math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
+  <msup>
+    <mi id="a">a</mi>
+    <mo id="plus">+</mo>
+    <mi>b</mi>
+    <mi>c</mi>
+  </msup>
+</math></div>
+
+</body>
+
+</html>