wordpress가 SSL을 켠 후 CSS를 로드할 수 없는 경우 수행할 작업

add_filter('script_loader_src', 'agnostic_script_loader_src', 20,2);
function agnostic_script_loader_src($src, $handle) {
    return preg_replace('/^(http|https):/', '', $src);
}
 
add_filter('style_loader_src', 'agnostic_style_loader_src', 20,2);
function agnostic_style_loader_src($src, $handle) {
    return preg_replace('/^(http|https):/', '', $src);
}

if ($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') $_SERVER['HTTPS']='on';

require_once(ABSPATH . 'wp-settings.php');