public function page_has_shortcode() {
		if ( ! $this->is_option_set() ) {
			return false;
		}

		$page = get_post( $this->get_page_id() );

		if ( ! $page instanceof \WP_Post ) {
			return false;
		}

		$shortcode = Shortcodes\Checkout_Shortcode::get_wp_slug();
		return has_shortcode( $page->post_content, $shortcode );
	}