insert a HTTP: header into a HTTP:redirect

When you redirect a client to another page, I don't think there is a way to ask them to then send a specific header in the request they make to that page. What you should probably do instead is insert a cookie that indicates they have viewed the information page, and allow them to the main site whenever that cookie is present. If they decide to clear their cookies or browse in a "private" mode, they will see the information page multiple times, but I don't really see any good way around that. I think a cookie is the way to go.

 

 

The advantage of the cookie is it will also allow you to set an expiration. This means that after someone views the informational page, if they do not update their browser in a day/week/month they will see the page again, and so on until they update.