if (! ($r->uri =~ / special patterns go here /)) {
        $m->redirect('/page-not-found-error.html?p=' .uri_escape($r->uri));
}

##</code><code>##

ErrorDocument 404 /page-not-found-error.html

##</code><code>##

% my $page = uri_unescape($p) ||  $ENV{REDIRECT_URL};
You were looking for <% $page %> and the server can't find it.

##</code><code>##

if ($new) {
 # from http://www.masonhq.com/?FAQ:HTTPAndHTML
 $m->clear_buffer;
 $r->method('GET');
 $r->headers_in->unset('Content-length');
 $r->content_type('text/html');
 $r->header_out('Location' => $new);
 $m->abort(301);
}

##</code><code>##

Not Found

The requested URL /login/advanced was not found on this server.

Additionally, a 301 Moved Permanently error was encountered while trying to use an ErrorDocument to handle the request.

##</code><code>##

 $m->clear_buffer;
 $r->method('GET');
 $r->headers_in->unset('Content-length');
 $r->content_type('text/html');
 $r->header_out('Location' => $new);
 $m->abort(301);

##</code><code>##

The requested URL /login/advanced was not found on this server.

Additionally, a 301 Moved Permanently error was encountered while trying to use an ErrorDocument to handle the request.