implement CORS

package-lock.json

@@ -96,6 +96,15 @@
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
       "dev": true
     },
+    "cors": {
+      "version": "2.8.5",
+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
+      "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
+      "requires": {
+        "object-assign": "^4",
+        "vary": "^1"
+      }
+    },
     "debug": {
       "version": "2.6.9",
       "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
@@ -303,6 +312,11 @@
       "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
       "integrity": "sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw=="
     },
+    "object-assign": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+      "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM="
+    },
     "on-finished": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",

package.json

@@ -9,6 +9,7 @@
   "license": "MIT",
   "dependencies": {
     "body-parser": "^1.17.2",
+    "cors": "^2.8.5",
     "express": "latest",
     "underscore": "^1.8.3"
   },

server.js

@@ -1,11 +1,19 @@
 // Dependencies
 var express = require("express");
+var cors = require('cors')
 var _ = require("underscore");
 var bodyParser = require('body-parser');
 var util = require('util');
 
+// CORS Setup
+var corsConfig = {
+  "origin": true,
+  "credentials": true
+};
+
 // ExpressJS Setup
 var app = express();
+app.use(cors(corsConfig)); // Handle CORS requests
 var router = express.Router();
 var port = 8080;
 
@@ -13,6 +21,9 @@ var pets = { "1": {"id":1,"name":"Eclair","tag":"cat"},
              "2": {"id":2,"name":"Cannelle","tag":"cat"} };
 var counter = 3;
 
+// Handle CORS pre-flight request
+app.options('*', cors(corsConfig));
+
 // Log every request
 router.use(function (req,res,next) {
   next();