Crash when credentials are not given
description
When the credentials are not given to the ObjectContext, but the service does require it - the library code causes to a crash.
The reason is that in HTTPHandler.m line 210 the user_name and password are nil. To fix that I suggest that in line 176 instead YES, return the following user_name != nil && password != nil.
This will cause the request no have the challenge and instead 401 will be returned to the requester.
Thanks.