2.4.3.18. Authorization via 401 header does not work

If the authorization on your site is not working, you need to add a file named .htaccess to the root of the site with the following content:

RewriteEngine on
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]

If you already have this file, you only need to add the second line, and it must be at the end of this file.