message: comment on weirdness
diff: @@ -92,6 +92,9 @@ class Analytics {
  */
  disable() {
  this.trackEvent('Analytics', 'opt-out');
  + // disableHeartBeatTimer is undocumented but exists in the piwik code
  + // the _paq.push method will result in an error being printed in the console
  + // if an unknown method signature is passed
  this._paq.push(['disableHeartBeatTimer']);
  this.disabled = true;
  }
  