Im reading the book "building spring 2 enterprise applications" and i'm at the section regarding how to implement onSubmit(). it says:my question is what isthe difference between redirecting to the success page and "internally forwarding"? and why is it dangerous to internally foward? thanks.After every form submission, the user should be redirected, not internally forwarded, to the success
page. This is a very important user experience and data-integrity concern, so always redirect a user
after an HTTP POST request.