Avoid "page has expired" message

[Victor Gil]

Hi all,

I have a website with a classic search form. When i go to results page and
press the "back" button the message appears (The page has expired). As you
know, pressing F5 resends the form and everything works again.

The method I use is POST and don't want to use GET. In [url]www.easyjet.com[/url] for
example this doesn't happens and when you press "back", it returns to the
form and don't loose the search cryteria.

Any idea? I've tried sending some headers about cache, but it doesn't work.

this is what I tried:
$caducidad = 30 * 60; // 3 minutos
Header("Expires: " . gmdate("D, d M Y H:i:s", time() + $caducidad) . "GMT");

[®ed Eye Media - Richard Grove]

"Victor Gil" <nopongo@mail.com> wrote in message
news:c64c1q$7unbb$1@ID-208022.news.uni-berlin.de...

> Hi all,
>
> I have a website with a classic search form. When i go to results page and
> press the "back" button the message appears (The page has expired). As you
> know, pressing F5 resends the form and everything works again.
>
> The method I use is POST and don't want to use GET. In [url]www.easyjet.com[/url] for
> example this doesn't happens and when you press "back", it returns to the
> form and don't loose the search cryteria.
>
> Any idea? I've tried sending some headers about cache, but it doesn't

work.

>
> this is what I tried:
> $caducidad = 30 * 60; // 3 minutos
> Header("Expires: " . gmdate("D, d M Y H:i:s", time() + $caducidad) .

"GMT");

>
>
>

Why not just get rid of the header() call?
RG

[Colin McKinnon]

Victor Gil spilled the following:

> Hi all,
>
> I have a website with a classic search form. When i go to results page and
> press the "back" button the message appears (The page has expired). As you
> know, pressing F5 resends the form and everything works again.
>
> The method I use is POST and don't want to use GET. In [url]www.easyjet.com[/url] for
> example this doesn't happens and when you press "back", it returns to the
> form and don't loose the search cryteria.
>
> Any idea? I've tried sending some headers about cache, but it doesn't
> work.
>
> this is what I tried:
> $caducidad = 30 * 60; // 3 minutos
> Header("Expires: " . gmdate("D, d M Y H:i:s", time() + $caducidad) .
> "GMT");

Don't use Microsoft Internet Explorer?

C.

[Victor Gil]

>

> Don't use Microsoft Internet Explorer?
>
> C.

is this an advice????

I can't tell people what navigator to use...

Please anyone knows a solution? but a programming solution, please

[John Murtari]

"Victor Gil" <nopongo@mail.com> writes:

> Hi all,
>
> I have a website with a classic search form. When i go to results page and
> press the "back" button the message appears (The page has expired). As you
> know, pressing F5 resends the form and everything works again.
>
> The method I use is POST and don't want to use GET. In [url]www.easyjet.com[/url] for
> example this doesn't happens and when you press "back", it returns to the
> form and don't loose the search cryteria.
>
> Any idea? I've tried sending some headers about cache, but it doesn't work.
>
> this is what I tried:
> $caducidad = 30 * 60; // 3 minutos
> Header("Expires: " . gmdate("D, d M Y H:i:s", time() + $caducidad) . "GMT");
>

Okay, we had the same problems on some projects where people
want to go back a page and not get the expired message. The following
should do it, in this case we give them 5 minutes -- change as you
disire

header("Cache-Control: max-age=300, must-revalidate");


Hope this helps.
Best regards!
--
John
__________________________________________________ _________________
John Murtari Software Workshop Inc.
jmurtari@following domain 315.635-1968(x-211) "TheBook.Com" (TM)
[url]http://thebook.com/[/url]