Node.js - res.render won't update view on browser

Question

I'm using express and handlebars to build a web app. When I attempt to render a new template, however, the browser doesn't get updated at all. The console output contains the rendered html, but the page on screen stays the same. My code:

router.post('/login', function(req, res) { 
User.findByUsername(req.body.username, function(err, user) {
  if(err === null) {
    req.session.username = req.body.username;
    req.currentUser = user;
    console.log("rendering"); //prints
    res.render('x.handlebars', {currentUser : req.session.username});
  }
  else
    utils.sendErrResponse(res, 403, 'Username invalid');
});
});

Answer 1

res.render on server side will write the html content to the socket stream. It doesn't render to the screen.

The browser must read the response html and render it manually as,

responseText = //variable loaded its html content via ajax call
$("#someDivId").html(responseText)