Aha! I found the culprit! You were spot on, although slightly confused. Apache does notice the status header of an internal redirect. Here's the code: 
        location = ap_table_get(r->headers_out, "Location"); 
 
        if (location && location[0] == '/' && r->status == 200) {

[download]
So if there's a status, it has to be "200". Any other status, and the code falls through to sending the header out to the client instead (an external redirect).

And there appears to be no-way to force a 200 status using CGI.pm's "redirect". {sigh}

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

update: Ahh. I was wrong about CGI.pm. You can use 
print redirect(-uri => "/foo", -status => 200);

[download]

In reply to •Re: Re: Re: cgi redirect (again) by merlyn
in thread cgi redirect (again) by The_Rev

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.