title: Node.js app giving ERR_EMPTY_RESPONSE
body: <p>I'm having serious issues with an app I am building with Node.js, Express, MongoDB and Mongoose. Last night everything seemed to work when I used <code>nodemon server.js</code> to `run the server. On the command line everything seems to be working but on the browser (in particular Chrome) I get the following error: No data received ERR_EMPTY_RESPONSE. I've tried other Node projects on my machine and they too are struggling to work. I did a npm update last night in order to update my modules because of another error I was getting from MongoDB/Mongoose { [Error: Cannot find module '../build/Release/bson'] code: 'MODULE_NOT_FOUND'}. I used the solution in this <a href="https://stackoverflow.com/questions/21656420/failed-to-load-c-bson-extension">answer</a> to try and fix it and it didn't work and I still get that error. Now I don't get any files at all being served to my browser. My code is below. Please help:</p>
  
  <pre><code>//grab express and Mongoose
  var express = require('express');
  var mongoose = require('mongoose');
  var Schema = mongoose.Schema;
  
  //create an express app
  var app = express();
  
  app.use(express.static('/public/css', {"root": __dirname}));
  
  //create a database
  mongoose.connect('mongodb://localhost/__dirname');
  
  //connect to the data store on the set up the database
  var db = mongoose.connection;
  
  //Create a model which connects to the schema and entries collection in the __dirname database
  var Entry = mongoose.model("Entry", new Schema({date: 'date', link: 'string'}), "entries");
  
  mongoose.connection.on("open", function() {
      console.log("mongodb is connected!");
  });
  
  //start the server on the port 8080
  app.listen(8080);
  
  //The routes
  
  //The route for getting data for the database
  app.get("/database", function(req, res) {
      Entry.find({}, function(err, data) {console.log(err, data, data.length); });
  
  });
  
  //The route for posting data on the database
  app.post("/database", function(req, res) {
      //test new post
      var newMonth = new Entry({date: '1997-10-30', link: 'https://wwww.youtube.com/'});
          newMonth.save(function(err) {
              if (err !== null) {
                  //object was not save
                  console.log(err);
                      } else {
                  console.log("it was saved!")
          };
      });
  });
  
  
  
  //create an express route for the home page at http://localhost:8080/
  app.get('/', function(req, res) {
      res.send('ok');
      res.sendFile('/views/index.html', {"root": __dirname + ''});
  });
  
  //Send a message to the console
  console.log('The server has started');
  </code></pre>