Node JS: Adds CORS ( Cross-origin resource sharing ) headers to the response

readme.md

EXAMPLE

CORS Express 4.x

const express = require('express');
const CORS = require( './modules/cross-origin.js' );

const app = express();
app.use( CORS );

cross-origin.js

/**
 * Adds CORS ( Cross-origin resource sharing ) headers to the response
 *
 * @param {object} request the Request object
 * @param {object} response the Response object
 * @param {function} next function to continue execution
 * 
 * @return {void}
 */
module.exports = ( request, response, next ) => {
  response.set({
    'Access-Control-Allow-Origin': '*',
    'Access-Control-Allow-Methods': 'DELETE,HEAD,GET,PATCH,POST,PUT',
    'Access-Control-Allow-Headers': 'Content-Type, Authorization'
  });

  if(request.method === 'OPTIONS') {
      response.send(200);
  } else {
      next();
  }
};