old_contents: var express = require('express');
  var router = express.Router();
  
  router.get('/', function(req, res) {
    res.render('index', {
      languagesMetaData: req.app.get('languagesMetaData'),
      version: req.app.get('packageVersion')
    });
  });
  
  module.exports = router;
  
new_contents: var express = require('express');
  var router = express.Router();
  
  router.get('/', function(req, res) {
    res.render('index', {
      locale: 'en',
      languagesMetaData: req.app.get('languagesMetaData'),
      version: req.app.get('packageVersion')
    });
  });
  
  module.exports = router;
  
subject: Update index.js