public function getFormRedirectInputs() {
        $key = WordPressRequestKeyRouteCollector::ROUTE_KEY;
        $reqroute = isset($_REQUEST[$key]) ? rawurldecode($_REQUEST[$key]) : '';
        $sessionId = isset($_REQUEST['amazonCheckoutSessionId']) ? $_REQUEST['amazonCheckoutSessionId'] : '';
        ob_start();
        ?>
        <input
            type="hidden"
            name="<?php echo WordPressRequestKeyRouteCollector::ROUTE_KEY ?>"
            value="<?php echo rawurlencode($reqroute) ?>"
        />
        <input type="hidden" name="amazonCheckoutSessionId" value="<?php echo esc_attr($sessionId); ?>" />
        <?php
        return ob_get_clean();
    }