To mitigate clickjacking, prevent the login form from being framed by another website.
(In [3267]) fixes #1679 - clickjacking countermeasures
There are two aspects of this patch:
(In [3287]) refs #1679
(In [3386]) refs #1679 - config option to enable/disable Login framebuster
Added FAQ: How do I enable users to login into Piwik inside an iframe?
let me know if any feedback