Basic HTML version of Foils prepared 2 Sept 1997

Foil 31 Maintaining State with Netscape Cookies

From CGI Programming with Advanced Topics Jackson State University Mississippi -- Fall Semester 97. by Nancy McCracken *

1 The Netscape Browser can store information in fields on the client side. The browser stores this information in a text file in the browswer directory and can thus provide "persistant" cookies: the information can be saved over many browser invocations, as well as transactions.
2 Basically, the browser sets up a cookie whenever it receives a "Set-Cookie" header from a server, and it will pass back information in the "HTTP_COOKIE" environment variable whenever the user requests a document that fits the validity parameters of the Set-Cookie header.
3 More general than hidden fields but currently only works on netscape browsers, work is being done on a general standard for HTTP state-info mechanism.
4 Current cookie specification is at URL:
5 http://home.netscape.com/newsref/std/cookie_spec.html

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