magento-test/app/code/Magento/Cookie/view/base/templates/html/cookie.phtml

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

/**
 * Cookie settings initialization script
 *
 * @var $block \Magento\Framework\View\Element\Js\Cookie
 * @var \Magento\Framework\View\Helper\SecureHtmlRenderer $secureRenderer
 */
$isCookieSecure = $block->getSessionConfig()->getCookieSecure() ? 'true' : 'false';
$scriptString = "
    window.cookiesConfig = window.cookiesConfig || {};
    window.cookiesConfig.secure = $isCookieSecure;
";
?>

<?= /* @noEscape */ $secureRenderer->renderTag('script', [], $scriptString, false) ?>