adding cors 2

index.js

@@ -5,17 +5,14 @@ const app = express();
 const port = process.env.PORT || 3000;
 const bodyParser = require('body-parser');
 const cookieParser = require('cookie-parser');
+const cors = require('cors');
 
+app.use(cors());
+app.options('*', cors());
 app.use(bodyParser.json());
 app.use(bodyParser.urlencoded({ extended: true }));
 app.use(cookieParser());
 
-app.use(function(req, res, next) {
-    res.header("Access-Control-Allow-Origin", "*"); // update to match the domain you will make the request from
-    res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
-    next();
-  });
-
 const bcrypt = require('bcrypt');
 const crypto = require('crypto');
 const DB = require("./mongoDB.js");

package-lock.json

@@ -12,6 +12,7 @@
         "bcrypt": "^5.0.0",
         "body-parser": "^1.19.0",
         "cookie-parser": "^1.4.5",
+        "cors": "^2.8.5",
         "dotenv": "^8.2.0",
         "express": "^4.17.1",
         "mongodb": "^3.6.3"
@@ -259,6 +260,18 @@
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
+    "node_modules/cors": {
+      "version": "2.8.5",
+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
+      "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
+      "dependencies": {
+        "object-assign": "^4",
+        "vary": "^1"
+      },
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/debug": {
       "version": "2.6.9",
       "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
@@ -1346,6 +1359,15 @@
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
+    "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",

package.json

@@ -13,6 +13,7 @@
     "bcrypt": "^5.0.0",
     "body-parser": "^1.19.0",
     "cookie-parser": "^1.4.5",
+    "cors": "^2.8.5",
     "dotenv": "^8.2.0",
     "express": "^4.17.1",
     "mongodb": "^3.6.3"