Hmmm... there is the option of having a link count... it would work, but it would also possibly cause trouble for the shopper. What you do is have a count, so that the page with count 3 has all its links contain a count 4, and if count 3 is seen again (ie someone copied and mailed link) then drop that session. This would work, but has definate shortcomings. 1) no back button for shoppers, going back will screw them up. 2) they can't have two windows open looking at the same session info. Other than that, it would work... tho cookies or IP (with IP not even being great because of firewalls and proxies) would be best.
                - Ant

In reply to Re: The sound of one cookie (not) authenticating by suaveant
in thread The sound of one cookie (not) authenticating by Hero Zzyzzx

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.