final optimisation, and typo fix

lib/express/index.js

@@ -123,43 +123,51 @@ module.exports = function (sails) {
 		}
 
 		var limitDefault = sails.config.uploadLimitDefault;
+	  	var needToCheckRoutes = false;
 
 		// pre-calculare regexp for paths
 		for (var key in sails.config.routes) {
 			var match = expresstUtils.pathRegexp(key);
 			sails.config.routes[key].pathRegexp = match;
-			if (sails.config.routes[key].cores && typeof sails.config.routes[key].cores === 'boolean') {
-				sails.config.routes[key].cores = '*';
+			if (sails.config.routes[key].cors && typeof sails.config.routes[key].cors === 'boolean') {
+				sails.config.routes[key].cors = '*';
+			}
+
+			// Optimization: don't check routes if we don't need to
+			if(sails.config.routes[key].cors || sails.config.routes[key].limit) {
+				needToCheckRoutes = true;
 			}
 		}
 
-		// Limit file uploads and set CORES per route
+		// Limit file uploads and set CORS per route
 		app.use(function(req, res, next) {
-
-			// Iterate over routes
-			for (var key in sails.config.routes) {
-				var route = sails.config.routes[key];
-
-				// Check if route matches the url we're trying to go to
-				if(route.pathRegexp.exec(req.url)) {
-					if (typeof route === 'object'){
-
-						// Apply cores config
-						if(route.cores){
-							res.setHeader('Access-Control-Allow-Origin', route.cores);
+			if(needToCheckRoutes) {
+				// Iterate over routes
+				for (var key in sails.config.routes) {
+					var route = sails.config.routes[key];
+
+					// Check if route matches the url we're trying to go to
+					if(route.pathRegexp.exec(req.url)) {
+						if (typeof route === 'object'){
 
-							// Remove CSRF token if it exists
-							res.locals._csrf = null;
-						}
-
-						// Apply uploadLimit config
-						if(route.uploadLimit) {
-							return express.limit(route.uploadLimit)(req, res, next);
+							// Apply cors config
+							if(route.cors){
+								res.setHeader('Access-Control-Allow-Origin', route.cors);
+
+								// Remove CSRF token if it exists
+								res.locals._csrf = null;
+							}
+
+							// Apply uploadLimit config
+							if(route.uploadLimit) {
+								return express.limit(route.uploadLimit)(req, res, next);
+							}
 						}
+
+						return express.limit(limitDefault)(req, res, next);
 					}
-
-					return express.limit(limitDefault)(req, res, next);
 				}
+
 			}
 
 			return express.limit(limitDefault)(req, res, next);