@ehwg opened this Issue on October 25th 2017

I have a piwik.domain.eu piwik installation. My active Site is www.site.de.
I included the optOut code:

<iframe frameborder="no" width="100%" height="300px" src="https://piwik.domain.eu /index.php?module=CoreAdminHome&action=optOut&language=de"></iframe>

on my site www.site.de/test.html
It is fine in IE, Firefox and even Edge, where the do not track option is recognized.
But unfortunately this seems not to work in Chrome browser. I get the OptOut text and the option to check but this seems not to be recognized. After clicking same text is shown again, saying still opted in.

Calling https://piwik.domain.eu /index.php?module=CoreAdminHome&action=optOut&language=de directly does work in Chrome.
I found issue [https://github.com/piwik/piwik/issues/9290] which is a kind different
and neverthelesse added this to the ini file:

assume_secure_protocol = 1 proxy_client_headers[] = HTTP_X_FORWARDED_FOR proxy_host_headers[] = HTTP_X_FORWARDED_HOST

But it did not have any effect. I have piwik 3.2 installed.

Any ideas or help would be welcome.
Kind regards

@ehwg commented on October 25th 2017

after some more research I found the reason: Chrome browser has a setting for cookies:
to block third-party cookies. I guess with this settings then there is no chance to swith off the tracking in chrome other then calling the optOut directly withut a frame in a new window, right?
This means for data protection reasons this has to be added then, or?
Best regards

@fdellwing commented on October 25th 2017

I tried this with Chrome 59 and Chrome 62 under Linux and it works fine with default browser settings.

So I'm pretty sure that you disabled 3rd-party-cookies by yourself.

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