check origin header

src/include/http_server.hpp

@@ -69,6 +69,7 @@ private:
   shared_ptr<DatabaseInstance> LockDatabaseInstance();
 
   uint16_t local_port;
+  std::string local_url;
   std::string remote_url;
   weak_ptr<DatabaseInstance> ddb_instance;
   std::string user_agent;