02/28/2018 (Wed) 02:45:51
Has anyone researched, in-depth, the Facebook, et al., "SHARE" inserts put on web content by third parties? That is, the "Like Button" and other social media embedded services.
I remember Stallman pointing out that Facebook is able to collect metrics from these anytime, ANYONE, Facebook user or not, visits a site. For the sake of a basic example, logging the IP while performing the GET request for the "LIKE" icon.
I know the concept makes it possible but there is some heavy Java Script behind all this and would be very curious to understand how exactly all that works.