Redirect user to previous page after authentication

Question

I'm using Google auth through Passport in my app and I'm attempting to redirect the user back to the original page they requested after successful sign-in. I think that location.reload() may be the problem, but not sure how to solve it.

routes.js:

router.post('/auth/google/return', passport.authenticate('google'), function(req, res) {
  res.redirect(req.session.returnTo);
  req.session.returnTo = null;
});

middleware.js:

var isAuth = function(req, res, next) {
  if (req.isAuthenticated()) {
    return next();
  } else {
    req.session.returnTo = req.url;
    return res.redirect('/');
  }
};

called on button click:

$.post('/auth/google/return', {code: authResult.code, access_token: authResult.access_token}).done(function(data) {
    location.reload();
});

please check this url http://stackoverflow.com/questions/4062260/nodejs-redirect-url — Elankeeran, Jun 18 '15 at 17:18
ajax requests don't play very well with server-side redirects. the redirect will have to happen client-side, or, you can remove the ajax request (probably the better option) — Kevin B, Jun 18 '15 at 17:41

michelem · Accepted Answer · 2015-06-18T17:33:17.290

3

Try:

router.post('/auth/google/return', passport.authenticate('google'), function(req, res) {
   var backURL = req.header('Referer') || '/';
   res.json({redir: backURL});
});

And:

$.post('/auth/google/return', {code: authResult.code, access_token: authResult.access_token}).done(function(data) {
    window.location.href = data.redir;
});

edited Jun 18 '15 at 17:33

answered Jun 18 '15 at 17:19

michelem

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When I look in the console that seems to have worked, as the correct page was loaded behind the scenes. Yet the actual page never updates. Strange. – MattDionis Jun 18 '15 at 17:26
thanks but unfortunately that results in 'Cannot GET /undefined'. – MattDionis Jun 18 '15 at 17:39
What's interesting is that when I `console.log(data)` in place of `window.location.href = data.redir` I see all the HTML of the page I was hoping to see. Could this be because I'm using Jade to serve my HTML files? – MattDionis Jun 18 '15 at 17:44
did you change the Node part too with this `res.json({redir: backURL});`? – michelem Jun 18 '15 at 17:50
the idea is to send the url string in json to the post response and use that to window.location.href – michelem Jun 18 '15 at 17:51

Redirect user to previous page after authentication

1 Answers1