public function furiganaCheckMiddleware() {
        return function ($args, $payload) {
            if (usces_have_shipped() === false) {
                return;
            }
            $del = $_SESSION['usces_entry']['delivery'];
            if (strtoupper($del['country']) === 'JP') {
                $name3 = isset($del['name3']) ? $del['name3'] : '';
                $name4 = isset($del['name4']) ? $del['name4'] : '';
                $this->name3 = $name3;
                $this->name4 = $name4;
                if (empty($name3) || empty($name4)) {
                    if (empty($payload) || !isset($payload)) {
                        return $this->module->clientErrorStore->getErrorResponse(ErrorCodes::FURIGANA_NAMES_REQUIRED);
                    }
                    $input_name3 = isset($payload['name3']) ? $payload['name3'] : '';
                    $input_name4 = isset($payload['name4']) ? $payload['name4'] : '';
                    if (empty($input_name3) || empty($input_name4)) {
                        return $this->module->clientErrorStore->getErrorResponse(ErrorCodes::FURIGANA_NAMES_REQUIRED);
                    }

                    // we set our member variables here because updating $_SESSION directly
                    // causes an automatic redirect to the cart page :/
                    $this->name3 = $input_name3;
                    $this->name4 = $input_name4;
                }
            }
        };
    }