title: app.use(express.static(path.join(__dirname))) apparently doesnt work on my express server
body: <p>I have the following express server:</p>
  
  <pre><code>path = require('path');
  express = require('express');
  app = express();
  
  app.use(express.static(path.join(__dirname)));
  
  server = app.listen(80, function () {
      host = 'localhost';
      port = server.address().port;
      console.log('listening on http://'+host+':'+port+'/');
  });
  </code></pre>
  
  <p>It supose to send me all files in the directory when i load <code>http://localhost</code> in the navigator, but it send me this text:</p>
  
  <blockquote>
    <p>Cannot GET /</p>
  </blockquote>
  
  <p>Why it happens??? Thanks for helping anyway.</p>