We enabled https and are using POST to access our webservice and found that as soon as we added in the header an Authorization field for implementing Basic Authentication we end with a 500 error:

Server Error in '/' Application

Object reference not set to an instance of an object.

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Have anyone encountered this same kind of problem when creating your own webservice on DNN? Or something similar? Any tips for debugging webservices built on top of DNN Services?

Thanks,