лобавлен запрос getData и cors

app.js

 // подключение express
 const express = require("express");
 // создаем объект приложения
+const cors = require('cors')
 const app = express();
 // определяем обработчик для маршрута "/"
 
@@ -44,7 +45,7 @@ function makeDevice(cards) {
     }
 }
 
-app.get("/getRfid", (req, res) => {    
+app.get("/getRfid", cors(), (req, res) => {    
     var msg = JSON.stringify(state, null, '\t');
     if (req.query.callback !== undefined) {
         msg = req.query.callback + "(" + msg + ");";
@@ -54,6 +55,22 @@ app.get("/getRfid", (req, res) => {
 });
 
 
+app.get("/getData", (req, res) => {    
+    let terminal_sn = state.terminal_sn;
+    let data = {
+        "pult_sn" : terminal_sn,
+        "serv_ip" : "unknown",
+        "serv_port" : "unknown"
+    };
+    var msg = JSON.stringify(data, null, '\t');
+    if (req.query.callback !== undefined) {
+        msg = req.query.callback + "(" + msg + ");";
+        return res.type('application/javascript').send(msg);
+    }
+    res.type('application/json').send(msg);    
+});
+
+
 // положить карту
 app.get("/", (req, res) => {
     res.status(200).send(`<ul>

package-lock.json

@@ -232,6 +232,15 @@
       "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
       "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
     },
+    "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"
+      }
+    },
     "create-error-class": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/create-error-class/-/create-error-class-3.0.2.tgz",
@@ -774,6 +783,11 @@
         "path-key": "^2.0.0"
       }
     },
+    "object-assign": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+      "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM="
+    },
     "on-finished": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",

package.json

@@ -7,6 +7,7 @@
     "dev": "nodemon ./app"
   },
   "dependencies": {
+    "cors": "^2.8.5",
     "express": "~4.16.4"
   },
   "devDependencies": {