Re: [squid-users] to turn off IE cache?

Pragma: no-cache
is not valid as a response header.

You should set these headers

Expires: <current date>
Cache-Control: no-cache

In PHP:

 header ("Expires: " . gmdate("D, d M Y H:i:s") . " GMT"); // Always expired
 header ("Cache-Control: no-cache"); // Should not be cached

For further information see the PHP documentation chapter "HTTP Functions"
and RFC2616.

Regards
Henrik Nordström
Squid Developer

On Thursday 27 December 2001 16.39, Takacs Istvan wrote:
> Hi
>
> I have some problems with IE and squid.
>
> We develop a web site with PHP and
> when I try to open our web pages via squid,
> IE always use its own cache. I tried to turn
> off caching in the IE settings but it didn't help.
> We tried to use 'no-cache' pragma
> in the header, but it doesn't work...
>
> Our page has many FORMs and tables,
> and when IE should show the different
> pages, it just opens the expired one from
> its cache.
> I found something in the squid mailing list archive:
>
> " * IE browsers not able to force a reload of the cache content since IE
> does not expect a cache to be in the seemingly direct TCP/IP path, and
> thus does not include the request information to tell a cache to reload
> it's contents."
>
> So, we should force somehow the idiot IE to reload
> the page from the server, not from its cache, but I don't
> know how...
>
> Netscape works fine.
>
> Thanks in advance!
>
> Regards
>
> Istvan

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