disableCookies does not work



I tried to stop piwik from setting cookies.
I followed this instruction: How do I disable all cookies for a visitor? - Analytics Platform - Matomo
But still some cookies are set: _pk_cvar, _pk_id, _pk_ref and _pk_ses

I do use Piwik 2.10.0

This is my trackingcode:

<!-- Piwik -->
<script type="text/javascript">
  var _paq = _paq || [];
  (function() {
    var u="//www.sven-lewerentz.de/piwik/";
    _paq.push(['setTrackerUrl', u+'piwik.php']);
    _paq.push(['setSiteId', 1]);
    var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
    g.type='text/javascript'; g.async=true; g.defer=true; g.src=u+'piwik.js'; s.parentNode.insertBefore(g,s);
<noscript><p><img src="//www.sven-lewerentz.de/piwik/piwik.php?idsite=1" style="border:0;" alt="" /></p></noscript>
<!-- End Piwik Code -->

Any idea why it is not working? Thanks in advance!


(Matthieu Napoli) #2

Are you sure these are not “leftovers” from the previous configuration?

If you delete those cookies, do they reappear?


Hi Matthieu,

yes, I deleted the Cookies (in Chrome) and after a reload they were set again. I checked it on a second computer, too.



I just created a completely new website and added the code as described in the FAQ

Fresh Install, different domain, Piwik 2.11.2 no old cookies set.
And again the same problem: Cookies were set by Piwik on first visit.

Anyone here who successfully uses “disableCookies”? I try to figure out, if this is caused by a mistake I made or if this is a general bug…



Did you try in Firefox and in Chrome.

To my experience, it works fine in Firefox, but doesn’t work in chrome.

I know this is very strange but I have been etsted for hours and I couldn’t find any fix to stop installation of visitors cookies in Chrome (cookies are ses / id / cvar…)



Hi Agnès,

thanks for your reply. Yes, I tested in Chrome only.
I will check Firefox and IE tomorrow.


(Matthieu Napoli) #7

If you it does work in Firefox and not in Chrome please open an issue on Github so that the team can fix it: Sign in to GitHub · GitHub


I can confirm, that it works fine in Firefox, but not in Chrome.
It seems to work in IE11, too. (But I can’t guarentee this, because I am confused by the way cookies are displayed in this browser)

I will open an issue on github.

Thanks @all



I already opened a ticket for this : The pragma "disableCookies" does not work in some browers · Issue #7494 · matomo-org/piwik · GitHub

Please feel fre to confirm it by adding your experience