[racket] Question about the double submit bug 'in the wild'

2010/8/21 Horace Dynamite <horace.dynamite at gmail.com>:
> I recently linked my bank account with a university for payment of
> tuition fees and such. Once I'd given them all my information I was
> presented with a confirmation page showing my details, it had the
> following warning beneath it,
>
> WARNING: Do not reload this page. Doing so could submit your financial
> information again. Please click the "Go back to portal" button below
> to exit.

Here is another example from the ISBN Application Proces:

    http://www.isbn.org/standards/home/isbn/us/application.asp

    Important! Please be sure that your web browser cache is turned
    on before you begin this application process. Otherwise you may
    lose all your data on the form when the browser's back button is
    clicked on for any reason. (Keep in mind that you shouldn't have to
    use your browser's back button at all during this application process.
    Whenever you miss a required field, the web application will inform
    you of your omission and it will reshow your partially completed
    form so that the change can be made without clicking on the back
    button.)

-- 
Jens Axel Søgaard