Maybe a different issue, but I'll nest it within old topic
Nabble embedded at plone.org fails to return the user to the required topic following a log in (Nabble 2 embedded at plone.org) (Safari, defaulting to accept cookies 'Only from sites that you navigate to')(move this issue elsewhere if appropriate)
1. in the toolbar of Safari 4.0.4, in a new tab, manually type
http://plone.org/support/forums 2. key return
3. in the embedded area, click
LoginI can't recall (sorry) whether the login dialogue appeared with or without embedding, in fact I'm not sure whether there was a prompt to login at all, in any case the end result was finding myself
* in a Nabble domain and not at a login prompt (no longer embedded at plone.org (which doesn't bother me; just for the record)).
Then in a new tab I visited <
http://plone.org/support/forums/general> and clicked Login. This time, the login dialogue appeared embedded and the routine completed successfully :)