I have faced some problems with mage messages. Actually, they are working fine before when i have not done anything on the server. But after adding below line =>
Header edit Set-Cookie ^(.*)$ $1;HttpOnly;Secure;SameSite=None
All mage-messages are not working. I know this is not a Magento relevant question but somehow I am very curious about & want to know why these messages stop. If I removed set-cookie same-site=none from the server then it will work fine.
If someone faces the same problem please let me know.
Add i don't want to remove Header edit Set-Cookie ^(.*)$ $1;HttpOnly;Secure;SameSite=None
because the latest browser update like Chrome treats cookies with no Same site value as SameSite = Lax. And it disables 3rd party modules using the cookies. So it is important to add any cross-site cookies to SameSite=None and label them as secure.
