HTML code to deny cache of .asp webpages

[cccc]

hi

how should be the HTML code on the webserver to deny cache of .asp webpages?

is this correct?

<meta http-equiv="pragma" content="no-cache" />
<meta http-equiv="Cache-Control" content="no-cache" />

but what are differencies between "pragma" and "Cache-Control" ?

[mattur]

Setting the headers is more reliable than using meta tags: see How (and how not) to control caches [mnot.net]

Meta tags are easy to use, but aren’t very effective. That’s because they’re only honored by a few browser caches (which actually read the HTML), not proxy caches (which almost never read the HTML in the document). While it may be tempting to put a Pragma: no-cache meta tag into a Web page, it won’t necessarily cause it to be kept fresh.

Here's example ASP code from ASPFAQ [classicasp.aspfaq.com]

<% 
Response.ExpiresAbsolute = #2000-01-01# 
Response.AddHeader "pragma", "no-cache" 
Response.AddHeader "cache-control", "private, no-cache, must-revalidate"
%>

[cccc]

thanks a lot!

I'll try this code:

Response.Expires = 0
Response.ExpiresAbsolute = 0 
Response.AddHeader "Pragma", "no-cache"
Response.AddHeader "cache-control", "no-store" 
Response.AddHeader "cache-control", "private, no-cache, must-revalidate"

to prevent any kind of caching.

[cccc]

is this code correct?

[cccc]

could someone explain pls, what exactly private and must-revalidate means?

[mattglet]

[w3.org...]