Unable to delete cookie from javascript

Question

I am on an external site, and I am trying to delete the cookie via javascript.

I did the following in the console:

function deleteAllCookies() {
             


        

Answer 1

Clear session cookies in ie11?

May be The Link above can give a Help

Just run the JavaScript like Below

document.execCommand("ClearAuthenticationCache")

I tried and The cookie was cleared.