lib/rack/app/serializer.rb in rack-app-5.0.0 vs lib/rack/app/serializer.rb in rack-app-5.1.0

@@ -9,9 +9,9 @@
   def set_serialization_logic(proc)
     @logic = proc
   end
 
   def serialize(object)
-    @logic.call(object)
+    String(@logic.call(object))
   end
 
 end