Wrong HTTP status codes

[Former user]

When sending HTTP request for invalid(nonexisting) URL, Serviio respondes with wrong HTTP statuses:

For request: http://10.132.152.90:8895/deviceDescription/7b00ddbb-d7dd-3b37-9eaf-492e77e8d8c7/abc

Porper URL but on the end added '/abc' - response 200 OK

For request: http://10.132.152.90:8895/INVALIDURL - response 501 Not Implemented

IMHO in both cases there should be '404 Not Found'