Do-Not-Track iFrame need authentification with CASLogin Plugin


at the moment we’re using Piwik 1.9.2 with the CASLogin Plugin, because we have a Songle-Sign-On in our company. After I put the Do-Not-Track iFrame on the webpage, I realized an issue. The checkbox wont show until I am logged in the SSO. If I’m not logged in and i copy the iFrame URL ito my browser, it redirects me to the Piwik login screen.

Anyone has the same issue or maybe a solution for this error, I would apprechiate it very much. Thanks in advance.