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spiantino
on Aug 5, 2011
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Are you a Facebook employee?
not sure what a .pac file is, but yes, this is how it works.
mitchty
on Aug 8, 2011
[–]
Just a javascript script file that tests for where ip-wise the user originates from and determines if you use a proxy for the site or connect directly.
http://en.wikipedia.org/wiki/Proxy_auto-config
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