[Domain Mapping] WP Logout issue, httpS & domain mapping

Hello,

Since the last update of the Domain Mapping plugin, I'm experiencing some logout issues on my WP MU websites. When i log out (both with Admin and Super-Admin user, and i think even with editor user), after the logout process, if I come back to the website, i remain logged in.

I noticed this on 2 different WP MU platforms, with WP versions 4.9.6 and 4.9.5, both with https enabled (and cache disabled for testings) . But, on another WP (single website), without Domain Mapping plugin, also on version 4.9.6, i do not have any issues.

I suppose maybe the issue comes with the last version of Domain Mapping.

Do you have any similar feedback ?

Thanks a lot,
Levente