Perform checkSession to retrieve JWT access tokens during an IdP-initiated login

idp-init-ready.js

const validateResults = (err, authResult) => {
  if (err) {
    
    // handle error
    
  } else {
    
    const at = authResult.accessToken;
    // A naïve check to verify if we received a JWT access token
    if (!at || !at.startsWith('eyJ')) {
      return renewTokens();
    }
    
    // Use the tokens
    
  }
};

const renewTokens = () => auth0.checkSession({ audience: 'https://example.com' }, validateResults);

auth0.parseHash({__enableIdPInitiatedLogin: true }, validateResults);