diff --git a/content/base/src/nsDocument.cpp b/content/base/src/nsDocument.cpp
index 0949e8af9b2..47d9d948e8e 100644
--- a/content/base/src/nsDocument.cpp
+++ b/content/base/src/nsDocument.cpp
@@ -5760,7 +5760,9 @@ nsDocument::FlushPendingNotifications(mozFlushType aType)
 void
 nsDocument::AddReference(void *aKey, nsISupports *aReference)
 {
-  if (mScriptGlobalObject) {
+  PRBool dummy;
+  nsIScriptGlobalObject* scriptObject = GetScriptHandlingObject(dummy);
+  if (scriptObject) {
     if (!mContentWrapperHash) {
       mContentWrapperHash = new nsInterfaceHashtable<nsVoidPtrHashKey, nsISupports>;
       if (mContentWrapperHash) {
diff --git a/content/base/test/Makefile.in b/content/base/test/Makefile.in
index 614b9c9804b..767cb9460ee 100644
--- a/content/base/test/Makefile.in
+++ b/content/base/test/Makefile.in
@@ -212,6 +212,7 @@ _TEST_FILES = 	test_bug5141.html \
 		test_bug368972.html \
 		test_bug450160.html \
 		test_bug454326.html \
+		test_bug455853.html \
 		$(NULL)
 
 libs:: $(_TEST_FILES)
diff --git a/content/base/test/test_bug455853.html b/content/base/test/test_bug455853.html
new file mode 100644
index 00000000000..78354911b6b
--- /dev/null
+++ b/content/base/test/test_bug455853.html
@@ -0,0 +1,41 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=455853
+-->
+<head>
+  <title>Test for Bug 455853</title>
+  <script type="application/javascript" src="/MochiKit/MochiKit.js"></script>
+  <script type="application/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=455853">Mozilla Bug 455853</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 455853 **/
+
+function runTest() {
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  var doc = document.implementation.createDocument("", "", null);
+  var root = doc.createElement('nodes');
+  doc.appendChild(root);
+  root.expando = "ok";
+  root = null;
+  window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
+        .getInterface(Components.interfaces.nsIDOMWindowUtils)
+        .garbageCollect();
+  ok(doc.documentElement.expando, "Should have preserved the expando!");
+}
+
+runTest();
+
+</script>
+</pre>
+</body>
+</html>
