Cookie is a read-only
TIdCookieRFC2109 property that provides access to Cookies in the collection using the name and domain specified in AName and ADomain.
TIdCookies calls
GetCookieIndex, when using the read access specifier for Cookie, to determine the position of the Cookie having the specified CookieName and Domain. Cookie can return Nil when a Cookie cannot be located in the collection having the specified name and domain values.
Use CookieListByDomain to limit access to Cookie collection items having a specified Domain value. Use Items to access Cookie collection items by their integer position in the container.