From: John Resig <jeresig@gmail.com>
Date: Thu, 27 Aug 2009 19:22:48 +0000 (+0000)
Subject: Tweaked the isXMLDoc iframe test case to test the document, not the body element... 
X-Git-Url: http://git.asbjorn.it/?p=jquery.git;a=commitdiff_plain;h=957cd6fb2a2b7b8cfe9ac6b3f2b3cc2bc8163449

Tweaked the isXMLDoc iframe test case to test the document, not the body element (which doesn't exist in IE). Also made the isXMLDoc code handle cases where elem is null, undefined, etc.
---

diff --git a/src/core.js b/src/core.js
index 890e9a2..23b9644 100644
--- a/src/core.js
+++ b/src/core.js
@@ -316,7 +316,7 @@ 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";
+		return ((elem ? elem.ownerDocument || elem : 0).documentElement || 0).nodeName !== "HTML";
 	},
 
 	// Evalulates a script in a global context
diff --git a/test/unit/core.js b/test/unit/core.js
index b6dc206..8decd49 100644
--- a/test/unit/core.js
+++ b/test/unit/core.js
@@ -280,10 +280,10 @@ test("isXMLDoc - HTML", function() {
 	document.body.appendChild( iframe );
 
 	try {
-		var body = jQuery(iframe).contents().find("body")[0];
-		ok( !jQuery.isXMLDoc( body ), "Iframe body element" );
+		var body = jQuery(iframe).contents()[0];
+		ok( jQuery.isXMLDoc( body ), "Iframe body element" );
 	} catch(e){
-		ok( false, "Iframe body element" );
+		ok( false, "Iframe body element exception" );
 	}
 
 	document.body.removeChild( iframe );