error code "token_exchange_failed."

## Issue

Getting network error after successfully login. This is my config.
const config = {
issuer: 'http://localhost:9080/auth/realms/jhipster',
clientId: 'web_app',
redirectUrl: 'com.authproject.auth:/oauth2callback',
scope: ['openid', 'nst-eid-oid', 'nst-email', 'nst-profile', 'nst-cloudid-authentication-method']
};

Please help me to resolve this issue.

---

## Environment
I am using [Keycloak](http://www.keycloak.org/)

No repository file, test, or entry point is named. Start by reproducing the network error with the provided React Native configuration and Keycloak environment, then inspect the token-exchange path and document the concrete failure and expected behavior before making a change.

Written by the indexing model from the issue text.