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by yashap 1896 days ago
Most sites won’t want to do this, because HTML forms are useful! Also, that’s just one example, there are plenty of exemptions to the same origin policy: https://developer.mozilla.org/en-US/docs/Web/Security/Same-o...

In practice, for now you either use anti-forgery tokens, you don’t put your auth tokens in cookies, or you use strict SameSite auth cookies AND block all traffic from browsers that don’t support them (mostly legacy browsers).