I have a page which sends a redirect in the event of an error. The code used for redirecting is
response.sendRedirect(url)
What I want to be able to do is add parameters to that. I could do it by just appending them to the url like
url = + "?x=y&z=blah"
but I'd much rather send them more "behind the scenes", as if they were submitted by POST rather than GET, since the original page is in response to a POST.