Fixed a bug with the isXMLDoc test - also made sure that isXMLDoc was handling the...

[jquery.git] / src / core.js

diff --git a/src/core.js b/src/core.js
index 890e9a2..c8b5a46 100644 (file)
--- a/src/core.js
+++ b/src/core.js
@@ -316,7 +316,8 @@ jQuery.extend({
        isXMLDoc: function( elem ) {
                // documentElement is verified for cases where it doesn't yet exist
                // (such as loading iframes in IE - #4833)
-               return ((elem.ownerDocument || elem).documentElement || 0).nodeName !== "HTML";
+               var documentElement = (elem ? elem.ownerDocument || elem : 0).documentElement;
+               return documentElement ? documentElement.nodeName !== "HTML" : false;
        },
 
        // Evalulates a script in a global context