I've got a lot of temporary/testing subdomains [myapp].[myaccount].opalstacked.com --- without my own domain (yet). I need/want to use HTTPS on them (some already contain real userdata, and logins are used etc), but this needlessly creates new Let's Encrypt certificates as there's already one for opalstacked.com.
Indeed I now get messages "Lets Encrypt was disabled for site [mysitename] and switched to the shared certificate because it contains only opalstacked.com domains." However visiting those sub-subdomains gives me SSL_ERROR_BAD_CERT_DOMAIN on each one as it says "only valid for the following names: *.opalstacked.com, opalstacked.com"? Is ..opalstacked.com not included?
Because my "personal" LEs are for specific sub-subdomains so don't work interchangeably, and I expect it will not help to create one subdomain [myaccount].opalstacked.com for an LE cert because for that one the shared certificate would definitely work.
Or am I overlooking something obvious?