Programmatically Stopping Cache

Greetings,

I was wondering if anybody knows of a way to programmatically stop client's browsers from caching certain website pages?

I have a news section on my website that seems to cache really bad.

Anybody have any suggestions?

Sincerely,
Travis Walters

 

If you are dealing with similar things I stick this bit of code in any page you don't want caching

session_cache_expire( 0 );
session_cache_limiter( "nocache" );
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");

PHP:

It basically says - Do not cache this page, No really don't, Im not kidding don't cache it and so and so forth.

Any other languages im not too sure.

Thanks

 

Hey there,

For coldfusion, I found something that says..

<cfcache action="flush">

For some reason, it does not appear to be working too well though.

I thought there would be some sort of javaScript solution since the cache is happening client side.

Thanks for the PHP solution though. It will come in handy if I ever make a PHP site. I really love coldfusion though

Sincerely,
Travis Walters

 

The CF example looks like it is clearing the server cache rather than the client - you would need to see what renders as the way to do it is with header/ meta tags.

Response.AddHeader("cache-control", "no-store, must-revalidate, private")
Response.AddHeader("Pragma", "no-cache")

Code (markup):

is the ASP/ ASP.Net version but the other option is to add a historic absolute expiry date

 

Maybe this works:
<META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE">
or
<META HTTP-EQUIV="EXPIRES"
CONTENT="Mon, 22 Jul 2002 11:12:01 GMT">