News for hackers. Stuff that matters.

A comment on Facebook now informs the sender if you've read their message. Parent comment

Re:Facebook now informs the sender if you've read their message by eblackburn on Wednesday May 16, 2012 @03:25AM (#3980885)
I think I read somewhere that FB embed sound tags in their html to simulate the images trick.
[ Parent | on HN ]
Re:Facebook now informs the sender if you've read their message by mike-cardwell on Wednesday May 16, 2012 @04:49AM (#3981099)
Yes, they use the bgsound tag. That's one of the many tests that the Email Privacy Tester uses: https://emailprivacytester.com/
[ Parent | on HN ]