Recently, while working on my first JSP project i noticed that, while testing a form in Internet Explorer8, whenever i navigated back to a form using the back button(either the one you coded or the one provided by IE browser)the form fields remained uncleared, except the password field(Thank God!). The form i coded is one that updates an Ms-Access database.Duplicate entries in field corresponding to the primary key of my database would throw an error.
The reason why IE has not cleared the form field is because of its caching technique. Googling on this problem led me to this Microsoft webpage.
So my verdict is please switch over to Mozilla Firefox, because it is very developer friendly and of course user friendly. Firefox rocks!!
The following sites may also help you: