Comment on [Discussion\Request] - Link Previews images and Thumbnail URL function on lemmy.world
MrKaplan@lemmy.world 3 weeks ago
this isn’t something we have actively disabled.
newer lemmy versions have new functionality there that will take the thumbnail from the origin instance rather than always generating it locally, which explains why things may sometimes look slightly different than on other instances. the ability to set custom thumbnail urls is also only on newer lemmy versions.
once we’ve done the update, which should happen this month, that will also be the same on lemmy.world. a few days ago i did another test migration and it only took about 20 min for the db migrations while my previous test before the db upgrade took almost an hour, although i might have had different settings before in the test environment.
ekZepp@lemmy.world 3 weeks ago
Thank you for the reply 👌
Sergio@slrpnk.net 2 weeks ago
Hi, 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.