@DarkTemplar Parameters in a category definition are base courses (There exists also a key phrase parameter, metaclass for environment the type of The category in Python 3) agf img-src * 'self' knowledge: https:; is just not a very good Alternative since it can make your application vulnerable from XSS attacks. https://self-adhesive-mini-trunki56778.blogoscience.com/43910698/self-adhesive-mini-trunking-no-further-a-mystery