Comment 5 for bug 1037169

Ok, I looked into this a bit more:
 * flickr only uses http to do the oath bits and delivers no html over http (it does that over https). However, http://www.flickr.com/services/api/misc.overview.html says that https://secure.flickr.com/services is a valid endpoint, so I would prefer to use that if possible
 * sino and sohu are both confirmed to deliver html over http. These should be disabled or universe only