[IMPORTANT CHANGE] Switch to session-cookies

Switch from data cookies stored on the device to session-cookies managed
by the server more securely

.gitignore

@@ -1,2 +1,3 @@
 node_modules
 repo/secret
+sessions

app.js

@@ -5,7 +5,7 @@ const url = require('url');
 const crypto = require('crypto');
 const session = require('express-session');
 const { query } = require('express');
-//const FileStore = require('session-file-store')(session)
+const FileStore = require('session-file-store')(session)
 
 const app = express();
 
@@ -43,8 +43,8 @@ app.use(session({
     secret: secret.toString(),
     saveUninitialized:false,
     resave:false,
-    cookie: {maxAge: 120000}
-    //store:new FileStore()
+   	//cookie: {maxAge: none}
+    store:new FileStore()
 }));
 
 function report(str){