Can not log out in rails with devise due to invalid authenticity token

Question

So I'm stuck on this weird problem, which somehow I have never experienced before; and somehow I cannot find anything anywhere on how to solve it.

So my problem is this: When I'm logging out with this link

link_to "sign out", destroy_user_session_path, method: :delete

It crashes the application with this message

ActionController::InvalidAuthenticityToken in Devise::SessionsController#destroy 

The only other thing I have found here was that this says that someone has already logged out. However, this happens when I have not tried logging out before, nor has the time expired for the user to be logged in.

Is there anyone able to help me?

Answer 1

The error indicates that the test for cross site request forgery is failing, because of an expired or missing csrf token.

It's worth checking that your layouts/application.html has the =csrf_meta_tag or <%= csrf_meta_tag %> as appropriate.