Update server.js

server.js

@@ -6,29 +6,24 @@ const booksRouter = require('./books');
 const cors = require('cors');
 const allowedOrigins = ['https://peterwalker.xyz'];
 
-// Middleware to check origin and reject if not allowed
-app.use((req, res, next) => {
-  const origin = req.headers.origin;
-  console.log(`Request origin: ${origin}`);
-  if (allowedOrigins.includes(origin)) {
-    res.setHeader('Access-Control-Allow-Origin', origin);
-  }
-  next();
-});
-
-// CORS configuration
 app.use(cors({
   origin: (origin, callback) => {
     if (!origin) {
       return callback(new Error('Origin not specified'), false);
     }
-    if (allowedOrigins.indexOf(origin) === -1) {
+    if (!allowedOrigins.includes(origin)) {
       return callback(new Error('Not allowed by CORS'), false);
     }
     return callback(null, true);
   }
 }));
 
+app.use((req, res, next) => {
+  const origin = req.headers.origin;
+  console.log(`Request origin: ${origin}`);
+  next();
+});
+
 const isProduction = process.env.NODE_ENV === 'production';
 const PORT = isProduction ? 443 : 3001;