From basic understanding on perl CGI, I could say that the above replacement won't work as you expect. Have you read any manual which says about CGI::Application -> CGI::Application::FastCGI ?
Update 1 - Begin
Have you happened to see the below note ?
Note that cgiapp_init() will be called only once under lifecycle of FastCGI. setup() will also only be called once. (you should not be doing magical things in 'setup'.) So if you want to do something for every REQUESTS, you should write the logic in cgiapp_prerun().
reference
Update 1 - End

In reply to Re: Lost query in CGI::App::FastCGI on POST by greatshots
in thread Lost query in CGI::App::FastCGI on POST by BaldPenguin

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.