login.js

this.lock.show({
            container: 'hiw-login-container',
            authParams: {              
                device: 'Web App',
                scope: 'openid nickname email offline_access app_metadata', // offline_access needed for refresh tokens
                response_type: 'code'
            }
        }, 
        (err, profile, token) => {
            if(err) {
                console.log(err);
            }
            else {
                this.authService.login(profile, token);               
            }
        });