Does anybody know why and when thumbnails for YouTube videos are shown or not? It appears to depend on the lemmy instance the posts are served from:
Without Thumbnails
With Thumbnails
Update: It’s not only YT thumbnails which aren’t shown. This is your post about the free 24 slot bag as shown on lemmy.wtf (without thumbnail), lemmy.world (without thumbnail) and feddit.de (with thumbnail):
That’s really weird. I already went through the issue tracker on GitHub for both the lemmy backend as well as the frontend, but couldn’t find anything. I also checked the documentation whether there is a configuration option somewhere. Nothing.
My guess is that the thumbnail is extracted (read from the opengraph tag available via the posted URL) in the frontend (and not the backend).
The only thing I could find on the issue tracker which might be related is this:
https://github.com/LemmyNet/lemmy-ui/issues/709
I have no idea why it is happening. The only thing I can think of is Cloudflare tunnel, but why would that keep the thumbnails from loading? I send a message to the admin of Lemmy.world.
edit: I am also trying to troubleshoot why users from kbin.social can’t subscribe to here and vice versa.
I was able to subscribe from lemmy.world to kbin.social (yesterday or the day before). I tried it on another account from feddit.de today and it did not work. My guess is a problem at kbin.social.
This works:
This doesn’t work:
The difference between the two communities at lemmy.world, is that c/selfhosted has been around for a long time and c/xcode was created just a few days ago. It seems that only communities that initially connected with kbin.social work, but not new communities.
I see you have been discussing this with the people & mod of the GW2 magazine on kbin.social already. To me it really seems to be an issue on their side. As I mentioned above: I currently cannot subscribe from feddit.de to their guildwars2 magazine, either.