Apology: This is not a perl q., however, desparation and fruitless trawling for help elsewhere has led me back here. If this is breaking the rules of the site I respectfully withdraw this plea!

I have developed a simple site which has <a href>'s which set a cookie and the server should serve a page appropriate to the cookie value.

In one environment I have tested it, it doesn't. It returns a cached copy of the page. A manual refresh will bring up the page (I have cleared the client cache). This environment has winGate (proxy/cache gateway server) installed.

I have inserted

• http headers

  Expires: Fri, 15 Dec 2000 12:27:49 GMT
  Pragma: no-cache
  Cache-control: no-store,no-cache,must-revalidate,post-check=0,pre-chec
  +k=0
  Content-Type: text/html; charset=ISO-8859-1
  [download]

and
• html META tags

  
  <META Http-Equiv="Cache-Control" Content="no-cache">
  <META Http-Equiv="Pragma" Content="no-cache">
  <META Http-Equiv="Expires" Content="0">
  [download]

But to no avail.

I do not have access to the cache server config. to do further testing, but I think at this stage that it is the culprit.

Is this a "doh" moment ?

Is my choice of logic (using cookies like this) flawed ?

If I modify the logic so that instead of cookies, I use post/get to pass the users choice to the server, will this improve the reliability of the site to load the pages correctly ?

Why would a gateway not support http header cache directives ?

Anyway, any and all help is greatly appreciated.