I always have the fear that something I write will be too complicated for someone else. This has become particularly irksome when integrating OIDC into a single page app. It’s gut wrenching to double check every random header for every domain it needs to serve, to set up SSL for localhost, to include the right headers on the fetch request, and maybe edit the /etc/hosts file to make it work. That process is a joy killer. The tools mentioned here can help stop that madness and bring joy back into development. So thank you! Please evangelize these ideas to browser standards committees and whoever will listen.