diff --git a/main.js b/main.js
index fb94041..3956cf7 100644
--- a/main.js
+++ b/main.js
@@ -54,6 +54,13 @@ 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) {