1 files changed, 25 insertions, 0 deletions
diff --git a/layout/reftests/bugs/404301-1-ref.html b/layout/reftests/bugs/404301-1-ref.html
new file mode 100644
index 000000000..aaf89acec
--- /dev/null
+++ b/layout/reftests/bugs/404301-1-ref.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<head>
+<style>
+table { background: white }
+col[span] { background: green }
+td { color: white }
+</style>
+</head>
+<body>
+ <table>
+   <colgroup id="x">
+     <col span="2"></col>
+     <col></col>
+     <col id="y"></col>
+   </colgroup>
+   <tr>
+     <td>One</td>
+     <td>Two</td>
+     <td>Three</td>
+     <td>Four</td>
+   </tr>
+ </table>
+</body>
+</html>