Here are the translations:
https://translate.google.com/transla...-text=&act=url
and;
https://translate.google.com/transla...-text=&act=url
As you might see, there is a general fear in Norway to loose control over the operations. I think your question for the CAA and UK control is very central for the british operations as well.
The current opinion from EASA states that only information is needed before starting cross-boarder operations, to the competent authorities of both countries.