The isTimeout fix from #970 was causing unintended status bugs (fixed). This...

The isTimeout fix from #970 was causing unintended status bugs (fixed). This also includes a fix for errors that occurred during an empty eval in IE (but #1410).

src/ajax/ajax.js

@@ -655,8 +655,10 @@ jQuery.extend({
 				
 				var status;
 				try {
-					status = isTimeout || (jQuery.httpSuccess( xml ) ?
-						s.ifModified && jQuery.httpNotModified( xml, s.url ) ? "notmodified" : "success" : "error");
+					status = isTimeout == "timeout" && "timeout" ||
+									!jQuery.httpSuccess( xml ) && "error" ||
+									s.ifModified && jQuery.httpNotModified( xml, s.url ) && "notmodified" ||
+									"success";
 					// Make sure that the request was successful or notmodified
 					if ( status != "error" && status != "timeout" ) {
 						// Cache Last-Modified header, if ifModified mode.
@@ -826,6 +828,8 @@ jQuery.extend({
 	// evalulates a script in global context
 	// not reliable for safari
 	globalEval: function( data ) {
+		data = jQuery.trim( data );
+		if ( data ) {
 			if ( window.execScript )
 				window.execScript( data );
 			else if ( jQuery.browser.safari )
@@ -834,5 +838,6 @@ jQuery.extend({
 			else
 				eval.call( window, data );
 		}
+	}
 
 });