verify function doesn't be called if token not provide or token parse error about passport-jwt HOT 2 CLOSED

const JWT_STRATEGY_CONFIG = {
  secretOrKey: 'little secret',
  jwtFromRequest: ExtractJwt.fromAuthHeader(),
  tokenQueryParameterName: 'access_token',
  authScheme: 'Bearer',
  session: false,
  passReqToCallback: true
};

const _onJwtStrategyAuth = function(req, jwt_payload, done) {
  User
    .findOne({id: jwt_payload.sub}, function(err, user) {
        if(err) { return done(err); }
        if(!user) { return done(null, false); }
        return done(null, _onPassportAuth(user));
    });
};

passport.use(new JwtStrategy(_.assign({}, JWT_STRATEGY_CONFIG), _onJwtStrategyAuth));