diff --git a/src/ajax.js b/src/ajax.js
index 2a107639..4f8fee6c 100644
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -45,9 +45,9 @@ var r20 = /%20/g,
 	ajaxLocParts;
 
 // #8138, IE may throw an exception when accessing
-// a field from document.location if document.domain has been set
+// a field from window.location if document.domain has been set
 try {
-	ajaxLocation = document.location.href;
+	ajaxLocation = location.href;
 } catch( e ) {
 	// Use the href attribute of an A element
 	// since IE will modify it given document.location
diff --git a/src/intro.js b/src/intro.js
index c0a5643f..a81c86f9 100644
--- a/src/intro.js
+++ b/src/intro.js
@@ -16,4 +16,6 @@
 (function( window, undefined ) {
 
 // Use the correct document accordingly with window argument (sandbox)
-var document = window.document;
+var document = window.document,
+	navigator = window.navigator,
+	location = window.location;