Add missing strong params to less important controllers not tested in specs

app/controllers/spree/admin/countries_controller.rb

@@ -1,6 +1,11 @@
 module Spree
   module Admin
     class CountriesController < ResourceController
+      def permitted_resource_params
+        params.require(:country).
+          permit(:name, :iso_name, :states_required)
+      end
+
       def collection
         super.order(:name)
       end

app/controllers/spree/admin/return_authorizations_controller.rb

@@ -19,6 +19,11 @@ module Spree
           @return_authorization.add_variant(variant_id.to_i, qty.to_i)
         end
       end
+
+      def permitted_resource_params
+        params.require(:return_authorization).
+          permit(:amount, :reason, :stock_location_id)
+      end
     end
   end
 end

app/controllers/spree/admin/shipping_categories_controller.rb

@@ -1,6 +1,10 @@
 module Spree
   module Admin
     class ShippingCategoriesController < ResourceController
+      def permitted_resource_params
+        params.require(:shipping_category).
+          permit(:name, :temperature_controlled)
+      end
     end
   end
 end