Seconded, also reading the list, it's likely he just delved deep enough to solve the issue at hand and then back to work. I can relate to that a bit, especiall

Seconded, also reading the list, it's likely he just delved deep enough to solve the issue at hand and then back to work. I can relate to that a bit, especially CORS since I never bothered to see what was up with that at a deep level either. Honestly just used a module for Flask when needed to get it working there and set up a CORS proxy on a cloudflare worker for a different project and called it a day. Maybe that's how it went with him too. I'd call this something like "Laze Driven Development"—learning just enough to solve the problem (like my experiences with bash scripts).