Emitted when an authenticating proxy is asking for user credentials.The callback function is expected to be called back with user credentials:* username string* password stringProviding empty credentials will cancel the request and report an authentication error on the response object:

Emitted when the server returns a redirect response (e.g. 301 Moved Permanently). Calling request.followRedirect will continue with the redirection. If this event is handled, request.followRedirect must be called synchronously, otherwise the request will be cancelled.