If you go to !videos@lemmy.world and scroll you’ll see some of the posts have a youtube thumbnail image, but not all.

I wanna post YouTube videos, but no one seems to engage much without a thumbnail, which makes sense, but I’m not sure what would result in the post actually having a thumbnail

If anyone has advice or guidance I’d appreciate it :) Thanks!

EDIT: so far it seems like it’s potentially a combination of what version of lemmy the posters account is running, and how that instance is configured…

  • flamingos-cant@feddit.ukEnglish
    12·
    10 days ago

    It’s because YouTube puts a bunch of JavaScript at the start of the file (1MiB) before the opengraph tags and Lemmy only fetches the first 512 KiB (a fix was merged a couple days ago).

    • hono4kami@slrpnk.netEnglish
      61·
      10 days ago

      If you don’t put a whopping 1MB of JavaScript in your website, you’re doing web development wrong.

      /s

    • P03 Locke@lemmy.dbzer0.comEnglish
      1·
      9 days ago

      I can fetch the damn thumbnail just fine. I have to do it on every YT post I submit.

      Reddit can fetch thumbnails from hundreds of websites, all of them different, including a bunch of porn sites. Pretty sure they have to code each site to map out the right URL and tags to parse.

      I know Lemmy is OSS, but I really wish it wasn’t so slow on the uptake with these things.