404 errors?

Errors are already addressed in Express for you. In the app.js file, there is the following:

  1. /// catch 404 and forwarding to error handler
  2. app.use(function(req, res, next) {
  3.     var err = new Error('Not Found');
  4.     err.status = 404;
  5.     next(err);
  6. });

Then in the views/ dir, there is errors.jade.

  1. extends layout
  3. block content
  4.   h1= message
  5.   h2= error.status
  6.   pre #{error.stack}

Simple. If you want to customize your 404 page, simply edit this view.