Erase html form data on submit.
Posted on 2009-04-03
I have a login page(php) that seems to work fine. You log in you logout, if you hit back it displays the form to log in again. But sometimes you hit back and the browsers say it will resend form information and hey presto you are logged in again?
How can I delete the password from the last page? I have tried all the no cache, no store, private, expires and so forth which only seems to effect the cache. I have also tried setting the form fiels to an empty string on onunload but can't seem to stop the problem.