I’m running a recently migrated Discourse forum. The nice-looking “Link previews” are generating fine for every site I’ve tried, except this one (which is important to us):
Since it doesn’t seem to be working here on Meta either, I wonder if it’s a bug in Discourse, or perhaps just some weirdness about the site itself, that is causing difficulties? Any clues as to what this could be?
That site is not private and does not require any login. I run that site also, so if there’s anything that needs to be done over there I can also give it a try.