lib/grape/middleware/versioner/param.rb in grape-0.11.0 vs lib/grape/middleware/versioner/param.rb in grape-0.12.0

@@ -25,13 +25,13 @@
           }
         end
 
         def before
           paramkey = options[:parameter]
-          potential_version = Rack::Utils.parse_nested_query(env['QUERY_STRING'])[paramkey]
+          potential_version = Rack::Utils.parse_nested_query(env[Grape::Http::Headers::QUERY_STRING])[paramkey]
           unless potential_version.nil?
             if options[:versions] && !options[:versions].find { |v| v.to_s == potential_version }
-              throw :error, status: 404, message: '404 API Version Not Found', headers: { 'X-Cascade' => 'pass' }
+              throw :error, status: 404, message: '404 API Version Not Found', headers: { Grape::Http::Headers::X_CASCADE => 'pass' }
             end
             env['api.version'] = potential_version
             env['rack.request.query_hash'].delete(paramkey) if env.key? 'rack.request.query_hash'
           end
         end