I had the same problem. It's even worse in IE5 since no error was 
displayed, just an empty form. To circumvent this, I put PHP controls 
for navigating. To go back, a button called 'modify' resubmits the data 
to the form page. On my site, if the user clicks the back button, they 
get hosed.... what can you do?

Any one else know?

Steven J. Walker
Walker Effects

On Wednesday, February 20, 2002, at 07:36  PM, Phillip S. Baker wrote:

> Hey All,
> I just converted my login process to sessions.
> It works great.
> However I am having one annoying issue come up.
> The site is a secure site. So each page has an include to check to see 
> if a validated session is there. If not a login forma appears and so on.
> It all works just fine.
> However I am coming up against a problem with forms now.
> I have a searchable listing of members.
> So there is a form to search for particular members.
> I preform the search, get a listing of possible matches.
> Now I click on a member name to get more info about him bringing up 
> another page.
> If I hit the back button on the browser to get the search results again 
> I get the following message
> Warning: Page has Expired 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.
> To resubmit your information and view this Web page, click the Refresh 
> button.
> Under my previous scheme where login was through the use of cookies.
> I did not get the above message.
> Anyone have any ideas how to get ride of this message and just allow 
> the back button to work like it did before?
> (Oh I get similiar messages in NN 6.2 or NN 4.+)
> Phillip
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