@tobozo There's no thumbnail for that link, I think?

@lupyuen very strange, it also fails for a few other posts, including one you boosted earlier

https://qoto.org/@lupyuen/110772389151945783
https://qoto.org/@lupyuen/110772374180520717
https://qoto.org/@lupyuen/110771510256664135
https://qoto.org/@lupyuen/110769465591375555
https://social.librem.one/@agx/110751696818636694

@tobozo Hmmm maybe it's my Tusky app that failed to generate the thumbnails?

@lupyuen thumbnails should be generated by the server producing the ActivityPub chunk, so it's probably not your app

let's blame #JohnMastodon 😜

@lupyuen server problem seems fixed, no more empty thumbnails for sites using incomplete opengraph metadata 🥳

@tobozo haha yay! 🎉

@lupyuen found the incriminating pull request

https://github.com/mastodon/mastodon/pull/26136

so it's not fixed, and the problem exists only because mastodon wants to comply with twitter opengraph 🤦‍♂️