bugfix: disable browser-sync tunnel

server.js

 const port = 9000;
-const browsersyncPort = 3000;
+const browserSyncPort = 3000;
 const distPath = 'www';
+
 // express server
 const { join } = require('path');
 const express = require('express');
@@ -12,6 +13,7 @@ app
     rep.sendFile(join(__dirname, distPath, '/index.html')),
   )
   .listen(port);
+
 // browser sync
 const bs = require('browser-sync').create();
 bs.init({
@@ -19,6 +21,6 @@ bs.init({
   proxy: `http://localhost:${port}`,
   open: false,
   notify: false,
-  port: browsersyncPort,
-  tunnel: true,
+  port: browserSyncPort
+  // tunnel: true,
 });