response-powered-by
Version:
Middleware to set the X-Powered-By header returned by Express
42 lines (38 loc) • 1.56 kB
JavaScript
/******************************************************************************
* Copyright (c) 2016 Nicola Del Gobbo
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use
* this file except in compliance with the License. You may obtain a copy of the
* License at http://www.apache.org/licenses/LICENSE-2.0
*
* THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
* WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
* MERCHANTABLITY OR NON-INFRINGEMENT.
*
* See the Apache Version 2.0 License for specific language governing permissions
* and limitations under the License.
*
* Contributors - initial API implementation:
* Nicola Del Gobbo <nicoladelgobbo@gmail.com>
* Antonio D'Angelo <tonydangelo123@gmail.com>
*****************************************************************************/
'use strict';
/**
* @description Add the `X-Powered-By` header on the response
* @param {String | null} The value for the `X-Powered-By` header
* @return {Function}
* @version 1.0.3
* @author Nicola Del Gobbo <nicoladelgobbo@gmail.com>
*/
module.exports = function responsePoweredBy(powered) {
return function(req, res, next) {
next = next || noop;
if(powered && typeof powered === 'string') {
res.setHeader('X-Powered-By', powered);
} else {
res.removeHeader('X-Powered-By');
}
next();
};
};
function noop() {}