Persistent cookie time

If I set a persistent cookie to expire after 30 minutes I would like to know if this means the cookie will expire after 30 minutes regardless of the user being still logged into the site or does this mean after the user closes the browser from that point on it will take 30 minutes to expire.
I'm publishing Sharepoint through ISA and wanted to find a more secure way of dealing with persistent cookies.
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Sid_FAsked:
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dbruntonQuid, Me Anxius Sum?  Illegitimi non carborundum.Commented:
>>  The cookie will expire after 30 minutes regardless of the user being still logged into the site.

See https://en.wikipedia.org/wiki/HTTP_cookie#Expires_and_Max-Age and the phrase

... allows the use of the Max-Age attribute to set the cookie’s expiration as an interval of seconds in the future, relative to the time the browser received the cookie.

which is what I suspect you are doing.
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Sid_FAuthor Commented:
Thanks
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