Just add this header
header ("Cache-Control: public");
----- Original Message -----
From: "Lee P Reilly" <[EMAIL PROTECTED]>
To: "PHP List" <[EMAIL PROTECTED]>
Sent: Monday, January 28, 2002 11:26 PM
Subject: [PHP] browser back button - "Page has Expired.. " problem
> I wonder if anyone can offer me a few pointers..?
> I'm building a portal to do various bits and bobs. I'm using sessions to
> facilitate the user authentication/login, etc. The only problem I have
> is that when viewing these (.php) pages in IE once the session variable
> has been set, a "Warning: Page has Expired " page is displayed whenever
> the 'Back' button is pressed. This means that the user can only access
> the page again by hitting 'Refresh' (and therefore posting the form data
> back & executing whatever scripts again).
> The rest of IE's error message reads, "The page you requested was
> created using information you submitted in a form. This page is no
> longer available. As a security precaution, Internet Explorer does not
> automatically resubmit your information for you."
> I know from using other web applications (Hotmail is one example), that
> this doesn't always have to be the case. Is there anyway I can eliminate
> this security precaution on the *server side* i.e. without telling users
> to ditch IE ;-)
> Thanks very much in advance for any advice.
> - Best regards,
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