diff --git a/mozilla/content/base/test/Makefile.in b/mozilla/content/base/test/Makefile.in
index 05fddb3bbf9..8192f9dfdc4 100644
--- a/mozilla/content/base/test/Makefile.in
+++ b/mozilla/content/base/test/Makefile.in
@@ -184,6 +184,7 @@ _TEST_FILES = 	test_bug5141.html \
 		test_bug420700.html \
 		test_bug421602.html \
 		test_bug422537.html \
+		test_bug424212.html \
 		$(NULL)
 
 libs:: $(_TEST_FILES)
diff --git a/mozilla/content/base/test/test_bug424212.html b/mozilla/content/base/test/test_bug424212.html
new file mode 100644
index 00000000000..f593d8563ba
--- /dev/null
+++ b/mozilla/content/base/test/test_bug424212.html
@@ -0,0 +1,36 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=424212
+-->
+<head>
+  <title>Test for Bug 424212</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>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=424212">Mozilla Bug 424212</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+
+/** Test for Bug 424212 **/
+var fired = false;
+var xhr = new XMLHttpRequest();
+xhr.open("GET", window.location.href + "?" + Math.random());
+xhr.send("");
+xhr.onreadystatechange = function () {
+  fired = true;
+  is(xhr.status, 0, "Unexpected status");
+} 
+xhr.abort();
+is(fired, true, "No onreadystatechange handling?");
+</script>
+</pre>
+</body>
+</html>
+
