Comment on [Discussion\Request] - Link Previews images and Thumbnail URL function on lemmy.world
Sergio@slrpnk.net 1 week agoHi, someone else here, noting that even after the update you’re not guaranteed that a thumbnail will propagate.
Consider:
On the default web client, you should see thumbnails for the youtube videos on the first two links, but not on the third. There are various reasons for this, here’s an earlier investigation.
On some phone apps I think all 3 of those links resolve to your instance. Clients/apps handle things differently, and some even fetch their own thumbnails!
Finally, everything is evolving: instance servers are reconfigured, versions are updated, clients change, hosting servers change the way they do things, youtube changes things on its end, etc. So it’s a bit of a moving target.