Provided anti-forgery token was meant for user "cmsAdmin", but the current user is ""

Questions
1

Hi,
I am trying to implment the ValidateAntiForgeryToken in Umbraco 7.2.4 where I have to post form in “Handle” action of uWebshop’s BasketHandlerController. I got the [The provided anti-forgery token was meant for user “cmsAdmin”, but the current user is “”] error if I submit the customer registration form with logged on umbraco backoffice admin user.

Note:: I tried to use my registration form in same browser in same window where my umbraco cms (backend) is logged in.

I have got the following exception.

enter image description here
enter image description here1366×667 117 KB

This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/67681-provided-anti-forgery-token-was-meant-for-user-cmsadmin-but-the-current-user-is