How to change widget title html in WordPress (before_title doesn't work at all)?

Question

WordPress

The function register_sidebarcreates a sidebar with arguments before_titleand after_title, divs. At the front, in the headers of this sidebar, standard h2. It's not divs that come to my widget anymore, but these h2. Why? How to change it?

Answer 1

I copied your code from the comment, pasted it into a clean theme, everything works fine

register_sidebar(
        array(
            'name'          => 'Сайдбар каталога',
            'id'            => 'catalog-sidebar',
            'description'   => 'Сайдбар для каталога',
            'before_widget' => '<div class="catalog-sidebar-section %2$s" id="%1$s">',
            'after_widget'  => '</div>',
            'before_title'  => '<div class="catalog-sidebar-header">',
            'after_title'   => '</div>',
        )
    );