diff --git a/mozilla/content/base/test/Makefile.in b/mozilla/content/base/test/Makefile.in
index 1af9766f69b..44bc70f4032 100644
--- a/mozilla/content/base/test/Makefile.in
+++ b/mozilla/content/base/test/Makefile.in
@@ -109,6 +109,8 @@ _TEST_FILES = 	test_bug5141.html \
 		file_bug326337.xml \
 		file_bug326337_multipart.txt \
 		file_bug326337_multipart.txt^headers^ \
+		test_bug402150.html \
+		test_bug402150.html^headers^ \
 		$(NULL)
 
 libs:: $(_TEST_FILES)
diff --git a/mozilla/content/base/test/test_bug402150.html b/mozilla/content/base/test/test_bug402150.html
new file mode 100644
index 00000000000..217ec56631d
--- /dev/null
+++ b/mozilla/content/base/test/test_bug402150.html
@@ -0,0 +1,25 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=402150
+-->
+<head>
+  <meta http-equiv="content-type" content="text/html; charset=utf-8">
+  <title>Test for Bug 402150</title>
+  <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
+  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>        
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+/** Test for Bug 402150 **/
+ok(true, "The document loaded properly");
+</script>
+</pre>
+</body>
+</html>
diff --git a/mozilla/content/base/test/test_bug402150.html^headers^ b/mozilla/content/base/test/test_bug402150.html^headers^
new file mode 100644
index 00000000000..453e7e1f37e
--- /dev/null
+++ b/mozilla/content/base/test/test_bug402150.html^headers^
@@ -0,0 +1 @@
+Last-Modified: Fri, 2 Nov 19107 00:00:01 GMT
