Facebook has moved from merely being a walled garden into openly attacking its users' ability and willingness to navigate the rest of the web. The evidence that this is true even for sites which embrace Facebook technologies is overwhelming, and the net result is that Facebook is gaslighting users into believing that visiting the web is dangerous or threatening. In this post I intend to not only document the practices which enable this attack, but to also propose a remedy.
Once again, Anil hits the nail on the head.
(Anil... nail... hurray for anagrams!)