On Fri, 2 Jun 2000, Geoffrey Young wrote:
> hi all...
>
> this simple script:
>
> #!/usr/bin/perl
>
> my $r = shift;
> $r->err_headers_out->add('Set-Cookie' => "name=error");
> warn "pre headers_out: " . $r->headers_out->get('Set-Cookie');
>
> $r->send_http_header('text/plain');
>
> warn "post headers_out: " . $r->headers_out->get('Set-Cookie');
> print "done";
>
> yields:
> pre headers_out: at /usr/local/apache/perl-bin/err.cgi line 7.
> post headers_out: name=error at /usr/local/apache/perl-bin/err.cgi line 9.
>
> and sets the cookie...
>
> I was initially trying to create a PerlInitHandler to put a cookie in
> err_headers_out, which I would expect to be set only if other handlers down
> the line error out, but it was being set every request.
>
> am I misunderstanding err_headers_out, or is send_http_header misbehaving?
see http_protocol.c:send_http_header():
if (!ap_is_empty_table(r->err_headers_out))
r->headers_out = ap_overlay_tables(r->pool, r->err_headers_out,
r->headers_out);
