Forces lower case comparison of protocol and host when determining wh…

…ether the request is remote or local. Fixes #6908

src/ajax.js

@@ -287,7 +287,7 @@ jQuery.extend({
 
 		// Matches an absolute URL, and saves the domain
 		var parts = rurl.exec( s.url ),
-			remote = parts && (parts[1] && parts[1] !== location.protocol || parts[2] !== location.host);
+			remote = parts && (parts[1] && parts[1].toLowerCase() !== location.protocol || parts[2].toLowerCase() !== location.host);
 
 		// If we're requesting a remote document
 		// and trying to load JSON or Script with a GET