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-rw-r--r--layout/base/crashtests/400445-1.xhtml22
1 files changed, 22 insertions, 0 deletions
diff --git a/layout/base/crashtests/400445-1.xhtml b/layout/base/crashtests/400445-1.xhtml
new file mode 100644
index 0000000000..9cb71dbbd6
--- /dev/null
+++ b/layout/base/crashtests/400445-1.xhtml
@@ -0,0 +1,22 @@
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:math="http://www.w3.org/1998/Math/MathML">
+<head>
+<script>
+
+function boom()
+{
+ var mtd1 = document.getElementById("mtd1");
+ var mtd2 = document.getElementById("mtd2");
+ var newSpan = document.createElementNS("http://www.w3.org/1999/xhtml", "span");
+
+ mtd1.appendChild(newSpan);
+ mtd1.removeAttribute("columnspan");
+ mtd2.setAttribute("columnspan", 0);
+}
+
+</script>
+</head>
+
+<body onload="boom();">
+<math:mtd id="mtd1" columnspan="5" /><math:mtd id="mtd2" />
+</body>
+</html>