what could cause the Warning: "Page has Expired when pressing the "Back" button"

[Elinor Chang]

I am using javascript:history.back() to direct JSPs back and forth. Someone gets the warning when visiting the page:

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.

I never had the error in my machine though. Is it something web browser dependent? Or what could possibly cause it? Something to do with the Javascript method?

[Eric Pascarello]

If data was submitted to the page and the page was not cached then that warning will come up. It is to keep a person from submitting the information twice to lets say a credit card company.

Eric

[Elinor Chang]

I did search upon the topic to find it is a known problem when trying to back to a page contains a form with POST method associated. However I didn't find any definite solution on it. Do you have any idea how to address that? Is there any code change required? - Thanks