It's allowed in Norway.
Well, only sort of...
BSL F, kap II, § 2-2 (in Norwegian.)
The basic rule: All flights during night shall be IFR.
Norwegian CAA may give permissions for a series of VFR night flights, and local ATC may give permissions for single VFR night flights.
It is the pilot's responsibility to grant permissions from all involved ATC units before taking off. (But they rarely do...

)
IFR is seperated from VFR night in D/E, VFR night is not seperated from VFR night in D/E.
Only reasons for rejecting VFR night request are high traffic load and weather situation.
In other words, VFR night is permitted in Norway.