It seems that the Date header is not allowed for HTTPService.
I am trying to set the date header for my request but this throws
an error. When I don't try to set the header, it gets set
automatically. The problem is, I need to know the exact value of
that header before I send the request (I am using it to encrypt
I made the change to the cross domain file in order to pass
the Authorization header and that worked, but it seems like Date
(which is on the list of blocked headers you sent) won't work even
if I have it in the cross domain file.