Hide X-Powered-By
  =================
  [![Build Status](https://travis-ci.org/helmetjs/hide-powered-by.svg?branch=master)](https://travis-ci.org/helmetjs/hide-powered-by)
  [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg)](http://standardjs.com/)
  
  Simple middleware to remove the `X-Powered-By` HTTP header if it's set.
  
  Hackers can exploit known vulnerabilities in Express/Node if they see that your site is powered by Express (or whichever framework you use). For example, `X-Powered-By: Express` is sent in every HTTP request coming from Express, by default. This won't provide much security benefit ([as discussed here](https://github.com/strongloop/express/pull/2813#issuecomment-159270428)), but might help a tiny bit. It will also improve performance by reducing the number of bytes sent.
  
  ```javascript
  var hidePoweredBy = require('hide-powered-by')
  app.use(hidePoweredBy())
  ```
  
  You can also explicitly set the header to something else, if you want. This could throw people off:
  
  ```javascript
  app.use(hidePoweredBy({ setTo: 'PHP 4.2.0' }))
  ```
  
  Note: if you're using Express, you don't need this middleware and can just do this:
  
  ```javascript
  app.disable('x-powered-by')
  ```