Fix: Return 401 error on unmatched certs

server.py

@@ -39,7 +39,7 @@ async def cert2room(request):
         match = re_dn.search(s_dn)
 
         if not match:
-            raise Unauthorized
+            raise Unauthorized("Unauthorized")
 
         # Get user's name from regex match
         name = match.groups()[0]