I think that’s the fault of whatever app / frontend you are using. On OP’s instance (which is just rendering HTML), and on the community’s instance (using lemmy-ui), this file plays. In both cases, it’s a bog-standard MP4 inside a VIDEO tag with a video/mp4 type. If - for example - you’re using Sync, then that app also can’t play MP4s hosted by Mastodon either.
Checked with your instance (feddit.nl), community’s instance (sh.itjust.works), and with lemmy.world. None show a thumbnail, but all can play the video (at least on default interface).
Indeed, for some reason, the video cannot be viewed when opened in another browser tab
“Crappy Design” as in I can’t view the video?
I think that’s the fault of whatever app / frontend you are using. On OP’s instance (which is just rendering HTML), and on the community’s instance (using lemmy-ui), this file plays. In both cases, it’s a bog-standard MP4 inside a VIDEO tag with a video/mp4 type. If - for example - you’re using Sync, then that app also can’t play MP4s hosted by Mastodon either.
Checked with your instance (feddit.nl), community’s instance (sh.itjust.works), and with lemmy.world. None show a thumbnail, but all can play the video (at least on default interface).
Indeed, for some reason, the video cannot be viewed when opened in another browser tab