> It’s insane that this hasn’t been the default all along across all browsers
Historically cookies weren't partitioned by site. So if you went to clear the cookies for https://publisher.example, then the browser wouldn't know whether to also clear cookies for https://other.example.
(Cookies are still not partitioned by default in Firefox; it requires turning on Total Cookie Protection)
Historically cookies weren't partitioned by site. So if you went to clear the cookies for https://publisher.example, then the browser wouldn't know whether to also clear cookies for https://other.example.
(Cookies are still not partitioned by default in Firefox; it requires turning on Total Cookie Protection)