Rejecting requests

[csondi10]

Hi!

I was wondering if there's a way to reject requests. I want to implement a jwt token refreshing method. I want to cancel a request if the token is missing or expired. I want to throw a custom error in the willSendRequest delegate method but I found that performRequest tries to cast the thrown error as DataLoaderError and after that calls the other delegate method shouldRetry. This way I cannot throw a custom error, but I also haven't found a way to throw DataLoaderError neither.