[kwlug-disc] DuckDuckGo.com -- an alternate search engine

Chris Irwin chris at chrisirwin.ca
Fri Jul 30 11:44:14 EDT 2010


On Thu, Jul 29, 2010 at 16:36, Johnny Ferguson <hyperflexed at gmail.com> wrote:
> How is this accomplished? I'm rather disgusted that enabling js can let
> people know who my bank is.

This can be done without javascript. Have an invisible link for bank1,
set the :visited property to use background image
"visited.php?url=bank1", repeat as necessary.

Even with javascript disabled, your browser will fetch the background
image if you have visted that url before, and this will be logged
server-side. No need to skip around the DOM tree with javascript and
relay that data from the browser to the server. You just log it on the
server directly.

-- 
Chris Irwin
<chris at chrisirwin.ca>



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