Since upgrading to 2.14, all tracking has stopped on my five-site setup. piwik.php is returning 400 with a useless payload, and the call results in no tracking.
Any incoming request, e.g.:
curl 'http://{hostname}/piwik/piwik.php?action_name={page title}&idsite=2&rec=1&r=782288&h=8&m=44&s=25&url={escaped page URL}&_id=b98288daaf7749cd&_idts=1428762921&_idvc=5&_idn=0&_refts=0&_viewts=1436543065&send_image=0&cookie=1&res=750x1334'
yields this response:
HTTP/1.0 400 123
<a href='/'>Piwik</a> is a free/libre web <a href='http://piwik.org'>analytics</a> that lets you keep control of your data.
I haven't the time to sort out a rollback right now, but I've forced piwik to serve up 404s until I have time to do so, in case there is background damage happening.
Any incoming request, e.g.:
curl 'http://{hostname}/piwik/piwik.php?action_name={page title}&idsite=2&rec=1&r=782288&h=8&m=44&s=25&url={escaped page URL}&_id=b98288daaf7749cd&_idts=1428762921&_idvc=5&_idn=0&_refts=0&_viewts=1436543065&send_image=0&cookie=1&res=750x1334'
yields this response:
HTTP/1.0 400 123
<a href='/'>Piwik</a> is a free/libre web <a href='http://piwik.org'>analytics</a> that lets you keep control of your data.
I haven't the time to sort out a rollback right now, but I've forced piwik to serve up 404s until I have time to do so, in case there is background damage happening.