headers not being parsed with mod

beaker121 has asked for the wisdom of the Perl Monks concerning the following question:

When I turn on mod_perl, my printed Content-type headers like this are not being parsed: print "Content-Type: text/html\n\n"; My website works in Firefox, but other (less tolerant) browsers like Chrome just print the source code with Content-Type: text/html also printed at the top. Developers tools show the Content-type header is missing. This is mod_perl/2.0.11 and I have +ParseHeaders in my apache config like so:

<VirtualHost myserverip:443>
    ServerAdmin webmaster@mysite.com
    DocumentRoot /var/www/mysite.com/public_html
    ServerName mysite.com
    ErrorLog /var/log/httpd/mysite.com-error_log
    CustomLog /var/log/httpd/mysite.com-access_log common
    <Directory "/var/www/mysite.com/public_html">
        AddHandler perl-script .cgi .pl .pm
        PerlResponseHandler ModPerl::PerlRunPrefork
        PerlOptions +ParseHeaders
                Options +ExecCGI -Indexes
        DirectoryIndex disabled
        AllowOverride All
        Order allow,deny
        Allow from all
        <IfModule mod_rewrite.c>
            RewriteEngine On
            RewriteOptions inherit

               # lots of mod_rewrite stuff in here #
        </IfModule>
    </Directory>
</VirtualHost>
[download]

Any ideas how I can fix this? thanks

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Re: headers not being parsed with mod_perl by hippo (Archbishop) on May 07, 2023 at 08:28 UTC
Any ideas how I can fix this? Yes. The web protocol is HTTP. In HTTP the headers and body are separated by a blank line. Once you've printed the blank line, everything which follows is body, not header. Output all your headers before the first blank line and the problem is solved. 🦛	[reply]
Re^2: headers not being parsed with mod_perl by beaker121 (Novice) on May 08, 2023 at 00:05 UTC
Thank you.	[reply]
Re: headers not being parsed with mod_perl by beaker121 (Novice) on May 06, 2023 at 22:02 UTC
It looks like this may be an issue with the code. I moved the bit that prints the header to earlier in the code and it now works, but the cookies printed later are now showing as text. I guess mod_perl isn't keen on having print statements for these things littered around the code, so I will have to try and unpick everything.	[reply]
Re^2: headers not being parsed with mod_perl by Anonymous Monk on May 07, 2023 at 00:38 UTC
Read the porting guide its only 20+ years old	[reply]