Revised the Nokia support fallback. It turns out that Nokia supports …

…the documentElement property but does not define document.compatMode. Adding this third fallback allows Nokia to run jQuery error-free and return proper values for window width and height.

src/dimensions.js

@@ -35,8 +35,10 @@ jQuery.each([ "Height", "Width" ], function( i, name ) {
 
 		if ( jQuery.isWindow( elem ) ) {
 			// Everyone else use document.documentElement or document.body depending on Quirks vs Standards mode
-			return elem.document.compatMode === "CSS1Compat" && elem.document.documentElement[ "client" + name ] ||
-				elem.document.body[ "client" + name ] || window.screen && window.screen[ name.toLowerCase() ];
+			// 3rd condition allows Nokia support, as it supports the docElem prop but not CSS1Compat
+			var docElemProp = elem.document.documentElement[ "client" + name ];
+			return elem.document.compatMode === "CSS1Compat" && docElemProp ||
+				elem.document.body[ "client" + name ] || docElemProp;
 
 		// Get document width or height
 		} else if ( elem.nodeType === 9 ) {