docs/using-callbacks.md in flexirest-1.10.10 vs docs/using-callbacks.md in flexirest-1.10.11

@@ -103,9 +103,10 @@
   def cache_cleanup(name, request)
     if name == :update || name == :delete
       Flexirest::Logger.info("  \033[1;4;32m#{Flexirest.name}\033[0m Invalidating cache for #{self.class.name} #{request.url}")
       Rails.cache.delete("#{self.class.name}:#{request.url}")
     end
+    nil
   end
 
   def cache(name, response)
     if name == :get
       response.response_headers["Expires"] = 1.hour.from_now.iso8601