I have a site I migrated from 2010 to 2016, both on prem. The site has a wiki and all pages are tagged with managed metadata category.
In the 2010 site anonymous users could click on a category (metadata) link that points to categories page in layouts directory. In 2016 they are prompted to login.
I've tried adding allow users in location element in config file and tried overriding allowanonymousaccess in the categories page.
Neither work, what changed from 2010 to 2016?