Jetpack_Sync_Defaults::is_whitelisted_option PHP Method

    static function is_whitelisted_option($option)
    {
        foreach (self::$default_options_whitelist as $whitelisted_option) {
            if ($whitelisted_option[0] === '/' && preg_match($whitelisted_option, $option)) {
                return true;
            } elseif ($whitelisted_option === $option) {
                return true;
            }
        }
        return false;
    }