Re: Prevent Browser From Going Back To Credit Card Page -- WEB400

thank you.  I will try again.  the first time I tried it before any HTML, I got
an error about not being able to display the page.  I must have had something
else wrong.
do I still need the 2 newline entries after CONTENT-TYPE: TEXT/HTML or do I put
these statements directly after and then do the 2 newline (x'15') characters?

----- Original Message ----- 
From: <Matt.Haas@xxxxxxxxxxx>
To: <web400@xxxxxxxxxxxx>
Sent: Thursday, January 26, 2006 8:52 AM
Subject: Re: [WEB400] Prevent Brower From Going Back To Credit Card Page

They are *NOT* HTML headers, they are HTTP headers. You need to send
them before you write any HTML out.

Matt

-----Original Message-----
From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx]
On Behalf Of Joe Giusto II
Sent: Wednesday, January 25, 2006 5:45 PM
To: Web Enabling the AS400 / iSeries
Subject: Re: [WEB400] Prevent Brower From Going Back To Credit Card Page

Do these go before the <HEAD> tag?

----- Original Message ----- 
From: <Matt.Haas@xxxxxxxxxxx>
To: <web400@xxxxxxxxxxxx>
Sent: Wednesday, January 25, 2006 4:49 PM
Subject: Re: [WEB400] Prevent Brower From Going Back To Credit Card Page

<SNIP>
Another thing you can do (you should actually do this anyway since you
don't want transactional data cached) is make sure that you're doing a
POST and write out the expire HTTP headers (these go after the
Content-Type header):

Cache-Control: no-cache
Pragma: no-cache
Expires: 0

When a person hits the back button, they'll get an error about expired
data.

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