Norton 360 does not recognize website http://www.pandora.com/#/account/sign-in/

Windows 7, IE 9 and Norton 360 v4:  I've tried everything to get NIS to recognize this website and also others.  For the most part most websites that require some login-in do work.

E.g.. of one that doesn't work

http://www.pandora.com/#/account/sign-in/  

 

 

[edit: Clarified subject.]