How can a browser know that the request came from a browser when SOP is apply? [closed]

I know that same-origin-policy is applied by the browser, it does not block requests, it just prevents the website from seeing the answer. But how do browsers really know that the request came from a browser, and not from a script with Pyt… Continue reading How can a browser know that the request came from a browser when SOP is apply? [closed]