Session variables on temporary "Current User"

Okay, that could be one work-around.

However, this is not really suitable. Because if users then “force” a open in new window (e.g. by holding down “CTRL” when clicking the link) the session variables will be lost.

It does in general seem like Bubble is clearing cookies when opening in a new tab. Because I just tried out the suggested solution by @keith here: How to attach anonymous data to existing user after they log in? - #2 by keith

This works like a charm… until someone opens in a new tab, see example here: