How to add "Remember Me" to my app with passport

I need a "Remember Me" checkbox when logging in like this . And I add a middleware before using passport

app.use(function(req, res, next) {
  if (req.method == 'POST' && req.url == '/login') {
    if (req.body.rememberme) {
      req.session.cookie.maxAge = 1000 * 60 * 3;
    } else {
      req.session.cookie.expires = false;
    }
  }
  next();
});
app.use(passport.initialize());
app.use(passport.session());

I can not login when req.body.rememberme is true and the user is remembered when req.body.rememberme is false. I also tried connect-ensure-login and it still wrong.

and another question: when should I delete the cookies in my database and how?

:)

Other code is exactly the same as the passport guide

route:

app.get('/', passport.authenticate('local', {
  failureRedirect: '/login'
}), function(req, res) {
  res.redirect('/user/home');
});
app.post('/login', passport.authenticate('local', {
  failureRedirect: '/login'
}), function(req, res) {
  res.redirect('/user/home');
});

sessions:

passport.serializeUser(function(user, done) {
  var CreateAccessToken = function() {
    var token = user.GenerateSalt();
    User.findOne({
      accessToken: token
    }, function(err, existingUser) {
      if (err)
        return done(err);
      if (existingUser) {
        CreateAccessToken();
      } else {
        user.set('accessToken', token);
        user.save(function(err) {
          if (err)
            return done(err);
          return done(null, user.get('accessToken'));
        })
      }
    });
  };
  if (user._id)
    CreateAccessToken();
});
passport.deserializeUser(function(token, done) {
  User.findOne({
    accessToken: token
  }, function(err, user) {
    if (err)
      return done(err