Cookie set from a server to a client with different domain(via XHR), but not recognized by Client domain

I have three domains but the same code base (Domain X, Domain Y, Domain Z) and
Accounts website A
If a user tries to sign in accounts from domain X, I wanted to SSO in the other two domains (Browser Scenario: third party cookies blocked)…. Continue reading Cookie set from a server to a client with different domain(via XHR), but not recognized by Client domain

What is the connection between CORS and SameSite cookie attribute?

For most of them may be its a silly question but I want it to know this in very simple language.

If an application is not using CORS at all then should we put this SameSite cookie attribute?

and if Application has subdomain like abc.doma… Continue reading What is the connection between CORS and SameSite cookie attribute?