key server: misc fixes to make jwtproxy work

endpoints/api/superuser.py

@@ -637,7 +637,6 @@ class SuperUserServiceKeyApproval(ApiResource):
   @verify_not_prod
   @nickname('approveServiceKey')
   @require_scope(scopes.SUPERUSER)
-  @validate_json_request('ApproveServiceKey')
   def put(self, kid):
     if SuperUserPermission().can():
       approver = get_authenticated_user()
@@ -648,6 +647,6 @@ class SuperUserServiceKeyApproval(ApiResource):
       except model.ServiceKeyAlreadyApproved:
         pass
 
-      make_response('', 200)
+      return make_response('', 200)
 
     abort(403)

endpoints/key_server.py

@@ -83,6 +83,7 @@ def list_service_keys(service):
 
 @key_server.route('/services/<service>/keys/<kid>', methods=['GET'])
 def get_service_key(service, kid):
+  logger.debug(kid)
   try:
     key = data.model.service_keys.get_service_key(kid)
   except data.model.ServiceKeyDoesNotExist: