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|### This repo is unmaintained and this technique may not work anymore.|
|By [Feross Aboukhadijeh](http://feross.org).|
|This code allows a malicious website to **detect whether the user is browsing through a proxy or not** by using image tags. Proxies are often used by corporations, political dissidents, and privacy conscience Internet users because they can provide additional security or anonymous Internet browsing.|