lib/rack/mock.rb in rack-2.0.0.alpha vs lib/rack/mock.rb in rack-2.0.0.rc1

@@ -126,10 +126,10 @@
             opts[:input] = params
           end
         end
       end
 
-      empty_str = ''.force_encoding(Encoding::ASCII_8BIT)
+      empty_str = String.new.force_encoding(Encoding::ASCII_8BIT)
       opts[:input] ||= empty_str
       if String === opts[:input]
         rack_input = StringIO.new(opts[:input])
       else
         rack_input = opts[:input]