Only shut down write side for http

src/http_handler.cpp

@@ -515,7 +515,7 @@ void HttpConnectionState::send_ordered_response(
     // Send through append_bytes which handles write interest
     conn.append_bytes(response_data.data, std::move(response_data.arena),
                       response_data.connection_close
-                          ? ConnectionShutdown::Full
+                          ? ConnectionShutdown::WriteOnly
                           : ConnectionShutdown::None);
     next_sequence_to_send++;
     iter = ready_responses.erase(iter);