A web application development technique, in which applications, in response to HTTP POST requests, redirect their browser clients to a results page to be retrieved via HTTP GET, rather than responding immediately to the POST. This is intended to defend against accidental resubmission of POSTed forms when pages are revisited via the browser's back/forward buttons, and preserve the semantics of the HTTP verbs GET and POST.
Also known as PostRedirectGet (PRG).
Described eloquently here: http://www.theserverside.com/tt/articles/article.tss?l=RedirectAfterPost
A simple example application demonstrating the principle: http://superinterface.com/rdapp/viewList.do