I mean that every time a user clicks a submit button to submit a POST form, you follow these steps:

  1. Handle the form. This means creating the order, flipping the status field on your table, or whatever
  2. Redirect to a status page. This might need some massaging of variables to be passed along the request line in order to get enough information to say what happened, but it will remove the flaw in your page-to-page flow.

This all stems from HTML not being meant to contain state information, and having that bolted on leaves a few rough edges such as this one.

If this is still unclear please say so and I'll try to come up with a fleshed out example

In reply to Re^3: page expired message by Tuppence
in thread page expired message by Hammy

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.