lib/roda/plugins/json.rb in roda-1.3.0 vs lib/roda/plugins/json.rb in roda-2.0.0

@@ -31,16 +31,18 @@
     # can specifically set the allowed classes to json by adding
     # using the :classes option when loading the plugin:
     #
     #   plugin :json, :classes=>[Array, Hash, Sequel::Model]
     module Json
+      OPTS = {}.freeze
+
       # Set the classes to automatically convert to JSON
-      def self.configure(app, opts={})
+      def self.configure(app, opts=OPTS)
         classes = opts[:classes] || [Array, Hash]
         app.opts[:json_result_classes] ||= []
         app.opts[:json_result_classes] += classes
         app.opts[:json_result_classes].uniq!
-        app.opts[:json_result_classes].extend(RodaDeprecateMutation)
+        app.opts[:json_result_classes].freeze
       end
 
       module ClassMethods
         # The classes that should be automatically converted to json
         def json_result_classes