A search on Google led me to the idea that adding cookie headers to an image would set the cookie as the image loaded. What I would eventually like to do is pick up HTTP_REFERER and create a conditional so that it is not overwritten when the user returns to the page from within the site.

The following sets the cookie when img.pl is called directly, but not when it loads as part of the HTML page (using <img src="img.pl">). The image loads so the script is obviously being run.

Is there something else that needs to be done, or am I barking up the wrong tree?

#!/usr/bin/perl -w
use strict;
use CGI ':standard';

my $pageref = 'hello';

# Refresh the cookie so that it doesn't expire.
my $perl_cookie = cookie(-name=>'referimg',
                     -value=>$pageref,
                     -expires=>'+30d');
print header(-cookie=>$perl_cookie);

my $file = "images/logonavy.gif";

open FILE, "$file" or die $!;
while (<FILE>) {
    print $_;
}

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In reply to setting a cookie via an image by jonnyfolk

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