lib/http/mvc/loader.js
function(map, callback) {
            async.filter(map, function(module, callback) {
                fs.exists(module.path, callback);
            }, function(map) {
                callback(null, map);
            });
        }
function(map, callback) {
            async.filter(map, function(module, callback) {
                fs.exists(module.path, callback);
            }, function(map) {
                callback(null, map);
            });
        }
function ( map , callback ) { async . filter ( map , function ( module , callback ) { fs . exists ( module . path , callback ) ; } , function ( map ) { callback ( null , map ) ; } ) ; }
Check for valid modules - paths
Check for valid modules - paths