I'm using Passport.js to do authentication, and per Google's OAuth2 documentation, I'm passing in a state variable:

app.get('/authenticate/googleOAuth', function(request, response) {
  passport.authenticate('google', {
    scope:
    [
      'https://www.googleapis.com/auth/userinfo.profile',
      'https://www.googleapis.com/auth/userinfo.email'
    ],
    state: { blah: 'test' }
  })(request, response);
});

However, I can't seem to access that variable at a later date:

passport.use(new googleStrategy(
{
    clientID: '...',
    clientSecret: '...',
    callbackURL: '...',
    passReqToCallback: true
},
function(request, accessToken, refreshToken, profile, done) {
  console.log('state: ' + request.query.state);
  login(profile, done);
}));

request.query.state is undefined. request.param("state") doesn't work, either.

How can I get at that variable after the authentication callback?

authentication passport.js
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