ajax with modal form will embed new page if redirect 302 happens

[Andy Chong]

ajax could not process the 302 redirection properly
it will instead append the new redirected page content onto current page

steps to reproduce:
create a new volume -> attach it to an instance -> detach it from an instance

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/5665

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/5665
Committed: http://github.com/openstack/horizon/commit/05b208f1046c96b69af44b1aff6a8c57f8a1b44d
Submitter: Jenkins
Branch: master

commit 05b208f1046c96b69af44b1aff6a8c57f8a1b44d
Author: Andy Chong <email address hidden>
Date: Thu Mar 22 13:34:40 2012 +0800

    Fix AJAX form posting that work incorrectly if get() in base views
    is overridden by subclass, e.g. EditRulesView and EditAttachmentsView
    if they don't add X-Horizon-Location custom headers if redirect is
    used. This mucking is probably the cleanest way to fix this in
    the meantime.

     * fix bug 961863

    Change-Id: I213e23a150b4afaba1249584e8cb3b376095533e