Yes, it's a nostr.build feature.
if you add a picture through https://iris.to it goes through https://nostr.build - so also the metadata get's stripped, i assume (@npub1g53mukxnjkcmr94fhryzkqutdz2ukq4ks0gvy5af25rgmwsl4ngq43drvk?)
how's this with the other clients?
amethyst - #[4] - damus - #[5] snort - #[6]
(idk who's working on https://hamstr.to, https://yosup.app, so cant tag)
Discussion
i sent a video through @iris yet when i check the same link through damius the video is not there is this intended? Its just a code ? Is this a bug is this intended if so why?