/**
* @param Piwik_Event_Notification $notification notification object
*/
function checkHeader($notification)
{
if (isset($_SERVER['HTTP_X_DO_NOT_TRACK']) && $_SERVER['HTTP_X_DO_NOT_TRACK'] === '1' || isset($_SERVER['HTTP_DNT']) && substr($_SERVER['HTTP_DNT'], 0, 1) === '1') {
$ua = Piwik_Tracker_Visit::getUserAgent($_REQUEST);
if (strpos($ua, 'MSIE 10') !== false) {
printDebug("INTERNET EXPLORER 10 Enables DNT by default, so Piwik ignores DNT for all IE10 browsers...");
return;
}
$exclude =& $notification->getNotificationObject();
$exclude = true;
printDebug("DoNotTrack found.");
$trackingCookie = Piwik_Tracker_IgnoreCookie::getTrackingCookie();
$trackingCookie->delete();
// this is an optional supplement to the site's tracking status resource at:
// /.well-known/dnt
// per Tracking Preference Expression (draft)
header('Tk: 1');
}
}
