Function loginFailure_diagnose

loginFailure_diagnose(
    error: unknown,
    url: string,
    probe?: (url: string) => Promise<string | null>,
): Promise<LoginFailure>
Classifies a login error, asking the network once when the error itself carries neither CUBE's answer nor a code (chrisapi's "No server response!").
Parameters
- error: unknown
  What the login threw.
- url: string
  The URL the login went to.
- probe: (url: string) => Promise<string | null> = url_probe
  How the network is asked; url_probe by default.
Returns Promise<LoginFailure>
The failure.
- Defined in packages/cumin/src/connect/loginFailure.ts:143