I still cannot make myself to try Caddy.. in things like this looks sweet but just may be 5% of the functionality [I care about]. Not saying it's not possible,

I still cannot make myself to try Caddy.. in things like this looks sweet but just may be 5% of the functionality [I care about]. Not saying it's not possible, but with Nginx I already know how to do list of CORS, OPTIONS , per location & cookie name caching. Issuing certs is probably simplest and the last thing in config setups of reverse proxying.