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Cookies

They are mainly used for managing sessions, tracking, and personalization

Prepend with __Host- to restrict cookie on a specific domain (no subdomains)

Prepend cookies with __Secure- to prevent them from being overwritten.

__Host- prefix is stricter than __Secure

Expires set an expiration

Secure header make cookies HTTPS

HTTPOnly header to prevent JavaScript access

SameSite to prevent sending the cookie via cross-origin requests

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document.cookie = "_Host-username=Jane; Secure; HttpOnly; Path=/; SameSite=Strict";