invalid token provided: illegal base64 data at input byte 1

[NatPDeveloper]

Brief:

Trying to test my dfuse install, using examples/check-balance.ts with the following config (recommended here):

export NETWORK=0.0.0.0:8080 // using real IP
  const client = createDfuseClient({
    apiKey: "web_abcdef123456789",
    network: DFUSE_API_NETWORK,
    authUrl: "null://",
    secure: false
  })

Error:

An error occurred DfuseApiError: Unable to correctly decode provided token.
    at DefaultHttpClient.<anonymous> (/newvolume/client-js/examples/node_modules/@dfuse/client/dist/lib/client/http-client.js:164:24)
    at Generator.next (<anonymous>)
    at fulfilled (/newvolume/client-js/examples/node_modules/@dfuse/client/dist/lib/client/http-client.js:5:58)
    at processTicksAndRejections (internal/process/task_queues.js:97:5) {
  description: 'Unable to correctly decode provided token.',
  cause: undefined,
  code: 'auth_invalid_token_error',
  trace_id: 'ee76f63a26b30c06a541b0aa9a6ca0f9',
  details: {
    reason: 'rpc error: code = Unauthenticated desc = invalid token provided: illegal base64 data at input byte 1',
    token: ''
  }
}
Example completed.