I've found a JavaScript file containing the feature:
https://duckduckgo.com/locales/en_US/LC_MESSAGES/duckduckgo-duckduckgo+sprintf+gettext+locale-simple.20150821.051933.js
See string "/Your browser indicates if you've visited this link/"
It's complicated to track when and how this code is executed.
El 21/08/15 a les 16:25, Narcis Garcia ha escrit:
> Those checkmarks are a circle symbol with floating description.
> Then they may have CSS visibility properties (?)
>
> __________________________________________________________
>
> El 20/08/15 a les 12:22, Jonas Wielicki ha escrit:
>>
>> On 19.08.2015 21:33, Narcis Garcia wrote:
>>> Currently DuckDuckGo returns private information in the results.
>>> When user performs a search, results include a small mark when are
>>> aleady visited in the past. This means DDG JavaScript accesses to
>>> web browser history.
>> It is not using JavaScript, just plain CSS:
>>
>> .result__check:visited {
>> color: #c3c3c3;
>> }
>>
>> Without that rule, the checkmarks (of which I think you are talking
>> about) disappear.
>>
>> regards,
>> jwi
>>
>> --
>> http://gnuzilla.gnu.org
>>
> --
> http://gnuzilla.gnu.org
--
http://gnuzilla.gnu.org
