Adding cookie does not work when "Cookies without SameSite must be secure" flag set

[dalejung]

Default state of the add cookie screen does not set SameSite and does not have Secure checked. This cookie is invalid and silently fails to add.

The flag was set earlier in the year (#276) but rolled back due to COVID-19. Looks like it'll start rolling out again this month.

https://blog.chromium.org/2020/05/resuming-samesite-cookie-changes-in-july.html

PR Fix: #278

Manual fix: Set the SameSite to Lax.

[Raisel]

has solution for the problem, follows:
when creating a new cookie you must select a LAX option in the SameSite selection combo