lib/rack/mock.rb in rack-0.3.0 vs lib/rack/mock.rb in rack-0.4.0

@@ -117,9 +117,10 @@
       @headers = Rack::Utils::HeaderHash.new
       headers.each { |field, values|
         values.each { |value|
           @headers[field] = value
         }
+        @headers[field] = ""  if values.empty?
       }
 
       @body = ""
       body.each { |part| @body << part }