Caching is a great way to improve performance on the Web;
however, sometimes you might want to force images to be
downloaded on each and every visit to a Web page. An example
of this might be a page that generates images dynamically
(for example, bar charts) but where the page uses the same
filenames over and over. Obviously, in this case, you must
require that the image be downloaded every time. So, to
prevent images in a directory from being cached, launch the
Internet Services Manager, navigate to the images directory in
question, then right-click the folder, and choose Properties.
In the Properties dialog box, select HTTP Headers, and then
click Add. Enter the following three headers:
cache-control:no-cache
pragma:no-cache
expires:0
This will prevent any images in the folder from being cached
on the client, so that you can modify them as often as you
like without fear of users seeing out-of-date versions.
Preventing Image Caching
By ElementK Journals, published on 14 Jul 2001
| Filed in
You might also like...
ASP (3.0) forum discussion
-
Invitation to take part in an academic research study
by researchlab (0 replies)
-
How to insert & edit unique value using store procedure
by umeshdaiya (0 replies)
-
How to troubleshoot Epson laser printer?
by daisywyatt618 (0 replies)
-
view state is stored after the page post-back
by shriniwas.khatri852 (0 replies)
-
Transfer selected rows from one GridView to another GridView in aspxform(ASP.NET)
by dorsa (0 replies)
ASP (3.0) podcasts
-
Hanselminutes: Startup Series: Buying an Existing Small Company or Online Application
Published 8 years ago, running time 0h34m
Scott talks to Rob Walling about how he purchases small niche products and companies online and revitalizes them. He recently purchased an existing product that consisted of a 300 gig database and tens of thousands of lines of Classic ASP. How did he know it was valuable? What's next?
Comments