Headers not being sent with mod

smithd77 has asked for the wisdom of the Perl Monks concerning the following question:

I have a page, that adds a filter to a mason generated page. The filter takes the output and converts it to a csv. The csv is sent fine, but none of the headers are being sent. I've been setting the headers by doing the following:

$r->err_headers_out->{'Content-Disposition'} ="attachment; filename=\"
+$csv_file\"";
  $r->headers_out->{'Content-Disposition'} ="attachment; filename=\"$c
+sv_file\"";
  $r->headers_out->{'ABZZ-Disposition'} ="attachment; filename=\"$csv_
+file\"";
  $r->content_type('text/csv');
  $r->set_content_length([stat $csv_fh]->[7]);
  $r->rflush();

And then send the file via this:
 $r-&gt;sendfile($pdf_file);
[download]

My question is what am I doing that headers aren't being sent?

Comment on Headers not being sent with mod_perl2 Download Code

Replies are listed 'Best First'.
Re: Headers not being sent with mod_perl2 by Anonymous Monk on Apr 09, 2014 at 06:30 UTC
I have a page, that adds a filter.... My question is what am I doing that headers aren't being sent? What do you have? The filter/configuration bits are as important as self-contained code , because mason/mod_perl/apache ... too many details that need to be detailed (example of similar journey mod_perl give 404 not_found with content )	[reply]
Re^2: Headers not being sent with mod_perl2 by smithd77 (Initiate) on Apr 09, 2014 at 17:46 UTC
The filter is dynamically added, it's not a config option and is added by : `my $r = idc::NTI::Session::Request->get_instance->get_apache_request; $r->add_output_filter(\&{"${class}::handler"});` [download] The filter works perfectly but can not change the headers.	[reply] [d/l]
Re^3: Headers not being sent with mod_perl2 by Anonymous Monk on Apr 09, 2014 at 21:25 UTC
The filter works perfectly but can not change the headers. Ok then, have a nice day :)	[reply]
Re: Headers not being sent with mod_perl2 (twice) by tye (Sage) on Apr 10, 2014 at 01:07 UTC
Does calling content_type() twice cause the second call and/or any headers after the first call to be ignored? (I didn't try to test that and all things Apache are C code and not even that is well contained so I'm much less likely to go searching for the right code to read to try figure out details.) - tye	[reply]