define('COOKIEPATH', '/');
define('COOKIE_DOMAIN', '.domain.com');

define('COOKIEPATH', preg_replace('|https?://[^/]+|i', '', get_option('home') . '/' ) );
define('SITECOOKIEPATH', preg_replace('|https?://[^/]+|i', '', get_option('siteurl') . '/' ) );
define('ADMIN_COOKIE_PATH', SITECOOKIEPATH . 'wp-admin' );
define('PLUGINS_COOKIE_PATH', preg_replace('|https?://[^/]+|i', '', WP_PLUGIN_URL)  );