I was in a situation like this once recently. I was trying to send a password pusher link to my brother over Signal. The password pusher was set to expire after

I was in a situation like this once recently. I was trying to send a password pusher link to my brother over Signal. The password pusher was set to expire after 1 day or 1 view. And my brother kept saying the link didn't work. Of course it doesn't work when Signal fetches it before him to make a preview! Had to set it to exactly 2 views and then he could view the password. And iirc the Signal-desktop release for Linux I was using could not disable previews of links. And even if it could, his end might have previewed it.