added cors

Author: Michael Rothenbücher

main.js

@@ -13,10 +13,14 @@ var Mustache = require('mustache');
 var express = require('express')
 var favicon = require('serve-favicon')
 var session = require('express-session')
+var cors = require('cors')
 
 // express stuff
 var rest = express()
 
+//cors
+rest.use(cors())
+
 // ejs
 rest.set('view engine', 'ejs');
 rest.use(express.static(__dirname + '/html'));
@@ -36,8 +40,6 @@ rest.use(session({
 // JSON
 rest.use(express.json());
 
-
-
 // datastorage stuff
 if (!fs.existsSync(__dirname + '/db')) {
   fs.mkdirSync(__dirname + '/db');
@@ -54,14 +56,6 @@ var http = require('http');
 // socket for sending data to the printer
 const Net = require('net');
 
-// cors option
-rest.use(function(res, next) {
-  res.header("Access-Control-Allow-Origin", "http://localhost:3000"); // use your own domain
-  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
-  res.header("Access-Control-Allow-Credentials", true)
-  next();
-});
-
 // Main
 rest.get('/', function(req, res) {
   var data = {};

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "zpl-rest",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "Webservice for Zebra ZPL printing",
   "main": "main.js",
   "scripts": {
@@ -18,6 +18,7 @@
     "registry": "https://npm.pkg.github.com/"
   },
   "dependencies": {
+    "cors": "^2.8.5",
     "diskdb": "^0.1.17",
     "ejs": "^3.0.1",
     "express": "^4.17.1",