Setting and removing cookies with jQuery cookie doesn't reflect in Chrome inspector -

I am using the jQuery cookie and I can not add a cookie to:

  $ .cookie ('foo', 'bar');  

not

  $ Cookie ('foo', 'bar', {path: '/'});  

And I can not seem to remove that cookie which was created by the feedback header.

  $ RemoveCookie ('foo', {path: '/ path-match-one-set-of-medium-server'});  

I have tried to right click and refresh and tried to click the latest icon but it is not updating.