From: John Resig <jeresig@gmail.com>
Date: Thu, 27 Aug 2009 20:07:45 +0000 (+0000)
Subject: Fixed a bug with the isXMLDoc test - also made sure that isXMLDoc was handling the... 
X-Git-Url: http://git.asbjorn.biz/?p=jquery.git;a=commitdiff_plain;h=569c8b45c0d301663f3f6c88b606d199fc78ec1a

Fixed a bug with the isXMLDoc test - also made sure that isXMLDoc was handling the case where documentElement is undefined (which only occurs on HTML documents in IE).
---

diff --git a/src/core.js b/src/core.js
index 23b9644..c8b5a46 100644
--- 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 ? elem.ownerDocument || elem : 0).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
diff --git a/test/unit/core.js b/test/unit/core.js
index 8decd49..46858ce 100644
--- a/test/unit/core.js
+++ b/test/unit/core.js
@@ -281,7 +281,7 @@ test("isXMLDoc - HTML", function() {
 
 	try {
 		var body = jQuery(iframe).contents()[0];
-		ok( jQuery.isXMLDoc( body ), "Iframe body element" );
+		ok( !jQuery.isXMLDoc( body ), "Iframe body element" );
 	} catch(e){
 		ok( false, "Iframe body element exception" );
 	}