A cookie sent from
juanitofatas.com, then we call SameSite or first party cookies. A cookie sent to
stripe.com, which does not match my site is called CrossSite, 3rd party cookies.
Cookies have SameSite attribute of
Starting with Chrome 80, all cookies by defaults set to
Set-Cookie: name=value; SameSite=Lax
Which means any 3rd party cookie will not be sent.
Set-Cookie: name=value; SameSite=None; Secure
3rd party cookie will be sent over HTTPS connection.
chrome://flags, enable these two experiments
Then go to your site, check console warnings. Make changes accordingly.