Missing OpenID identifier

Question

I have created demo application with Express framework and PassportJS support(on top of node.js). I need to implement OpenID Authentication with Wargaming.net account(OpenID url is http://ru.wargaming.net/id/). But Passport module returns flash message "Missing OpenID identifier". Please, help me to find errors in my code.

passport.use(new OpenIDStrategy({
    returnURL: 'http://localhost:3000/auth/openid/return', 
    realm: "http://localhost:3000/",
    profile: true
  },
  function(identifier, profile, done) {
      User.findByOpenID(identifier, function (err, user) {
        done(err, user);
      });
  }
));

app.post('/auth/openid', passport.authenticate('openid'));
app.post('/auth/openid/return', 
    passport.authenticate('openid', { successRedirect: '/',
                                failureRedirect: '/login',
                                failureFlash: true }));

Answer 1

The problem was in getting profile. I still don't know what is wrong. So I removed asking profile and changed url "/auth/openid/return" to GET request. So code is working fine now.