UserID in SharePoint 2013 (no replies)

Hi,

We have implemented PIWIK into our SharePoint 2013 environment and PIWIK is tracking all page impressions fine across various devices/browsers. My only issue is I am unable to get the userID to present within the analytics.

In our code we have captured the userID and it can be seen in the PIWIK section within "view source" also to show it is capturing the username...just not passing it over to PIWIK

var userId = 'lelce';
console.log('using xsl variable:'+userId);

This was working initially - may have patched since then and if i change the userID in FireBug and then run the page refresh it registers those hits too e.g. "joe bloggs"

Thanks,