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Forcing images to expire from browser cache

Forcing images to expire from browser cache

Forcing images to expire from browser cache

I'm trying to include a header that will make sure my images expire from browser cache. I had originally been told to do something like this

use CGI::Response qw(:Simple);
print &NoCache('image/gif');

but that gives me a server error.  I've used "use File::Copy" before without any problems, but this doesn't seem to work.

Since then, I've been trying to manually insert the header, but I am likely doing it wrong.  At the bottom is my current test script, but it doesn't yield a valid picture.

Am I writing the header in the correct way?  

I'm working on a months-long project and this is my last bug.  I appreciate any advice that anyone can give me: the more thorough, the better.

James Sharp - ecokid@sover.net



require 'CGI_LIB.pl';

print "Content-type: text/html\n\n";

open(TESTPICFILE, ">../testpicheader.gif");
print "HTTP/1.1 200 OK\n\n";
print "$CGI{'testpic.gif'}->{'Contents'}";

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