×
INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Forcing images to expire from browser cache

Forcing images to expire from browser cache

Forcing images to expire from browser cache

(OP)
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

--

#!/usr/bin/perl5

require 'CGI_LIB.pl';
&Parse_Multi;

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

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

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close