This started happening to me a few days ago on multiple computers.

same here..

Worth starting that its super invasive on an Android mobile phone web browser...

each time u visit the homepage, get a full screen pop-up dialog warning! Press OK to dismiss it. Started happening last week.

I stopped logging in with your username and the errors temporarily went away

Same problem here, on IE8 win 7

Nope, Master race through and through

Aaah found it.
Will implement a fix within the hour

Fixed now.

Works for me, yipeee