AID-599: Redirect user back to URL when doing a POST

Makes sense, 401 seems like the correct response. Never really understood the difference between 401 and 403, but I think I get it now. From my dash-documentation:

´´´401 Unauthorized
The requestor is not authorized to access the resource. This is similar to 403 but is used in cases where authentication is expected but has failed or has not been provided.´´´

´´´403 Forbidden
The request was formatted correctly but the server is refusing to supply the requested resource. Unlike 401, authenticating will not make a difference in the server's response.´´´