http://privoxy5wtwbtk4wwyrdbg6oxeghvhghghmokcx2iawydkqmaztfbbid.onion/user-manual/actions-file.html
"check-decoded-url" to decode URLs (if necessary) before searching for
redirection URLs. Notes: Many sites, like yahoo.com, don't just link to other sites. Instead, they will link to some script on
their own servers, giving the destination as a parameter, which will then redirect you to the final
target.