Added cors

functions/src/index.ts

@@ -2,32 +2,28 @@ import * as admin from 'firebase-admin';
 import * as functions from 'firebase-functions';
 import * as paypal from 'paypal-rest-sdk';
 
+const cors = require('cors')({origin: true});
+
 paypal.configure({
   mode: 'sandbox',
   client_id: 'AaU8tQfmz1_MFDTKuf84yYERXvdDt2ZFJVrxhNW_49DazF4A_F0VBuKyV5_nntyEdZqUa5Oq9ZBj65GV',
   client_secret: 'EAZ8aFDU4lHHLy1bQqULYWqznf3dBknXZW3AH__zFC0bUs8AGUyR6RNbm-jHvqtikX7PsSqMO5vxuvKm'
 });
 
-export const checkout = functions.https.onRequest(async (request, response) => {
+export const checkout = functions.https.onRequest((request, response) => {
+  cors(request, response, async () => {
     // Create base request
     let req = {
       intent: 'sale',
-    payer: {
-      payment_method: 'paypal'
-    },
+      payer: {payment_method: 'paypal'},
       redirect_urls: {
         return_url: 'https://fhsons.zakscode.com/success',
         cancel_url: 'https://fhsons.zakscode.com/cart'
       },
       transactions: [
         {
-        item_list: {
-          items: []
-        },
-        amount: {
-          total: 0,
-          currency: 'CAD'
-        },
+          item_list: {items: []},
+          amount: {total: 0, currency: 'CAD'},
           description: 'Purchase of equipment and suplies from FH & Sons'
         }
       ]
@@ -75,6 +71,7 @@ export const checkout = functions.https.onRequest(async (request, response) => {
       response.status(500);
     }
   });
+});
 
 exports.process = functions.https.onRequest((req, res) => {
   const paymentId = req.query.paymentId;