Very true! If you're talking about nip05 cors? Its likely because the certificate expired. That was on my agenda for yesterday but stuff came up so that's happening as we speak!
Discussion
Im working on wrapping up an existing netcup plugin for certbot to handle acme automatically. It's been harder than I was hoping.
I can't get it automated, on my private server, but at least I can issue them from command line. Which is simpler.
