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Facebook does a "trick" by playing an empty sound file. http://pandodaily.com/2012/03/06/facebook-knows-when-you-open-their-emails-how-creepy-silent-sounds/ ht
by okamiueru 14y ago
Facebook does a "trick" by playing an empty sound file.
http://pandodaily.com/2012/03/06/facebook-knows-when-you-open-their-emails-how-creepy-silent-sounds/ http://pandodaily.com/2012/03/06/facebook-knows-when-you-ope...
- jcampbell1 14y agoInteresting, but that is a hack for IE / Outlook, not the GMail image filters.
- cma 14y agoThat should be a violation of the CFAA... charge Zuckerberg with ~300 billion counts