title: browser caching express nodejs
body: <p>I'm trying to setup browser caching on <a href="https://atmost.fr" rel="nofollow noreferrer">my website</a> without any success 
  There is my code on my server.js file</p>
  
  <pre><code>app.use(function(req, res, next){
  res.set({
      Expires: new Date(Date.now() + 2592000000).toUTCString()
  });
  next();
  })
  
  app.use(express.static(path.join(__dirname, '../build/public'),{maxAge:2592000000}));
  </code></pre>
  
  <p>Whats wrong ?</p>