on-response.js

async function on_response(response) {

  if (response && response.credential) {
    const rawdata = jwt_decode(response.credential);
    const user = (({ email, family_name, given_name, picture, name }) => ({ email, family_name, given_name, picture, name}))(rawdata);
    window.localStorage.setItem('gothic-id', 'loaded');
  }
  
  // leverage user object or move on to next step. 
}