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Cookies/Flags/Domain
From NetSec
Domain serves the opposite purpose of Path, that is, it expands a cookie's scope beyond the FQDN that set it, to a broader domain.
Say you have a cookie that has been set by http://savitri.staff.blackhatacademy.org. By default, http://hatter.staff.blackhatacademy.org can't access it. But if the first wants to share it with the second, then by setting Domain=.staff.blackhatacademy.org, this cookie is also obtained by http://hatter.staff.blackhatacademy.org
Note that if you specify another, same-level domain (that is, http://savitri.staff.blackhatacademy.org sets a cookie with Domain=errprone.staff.blackhatacademy.org), the result is not guaranteed, as your browser might reject this cookie.
| Savitri says |
|---|
| this is to be checked and tested extensively, as it might be an interesting vector |
