verify_authenticity_token()
Instance Protected methods
The actual before_action that is used to verify the CSRF token. Don't
override this directly. Provide your own forgery protection strategy
instead. If you override, you'll disable same-origin `<script>`
verification.
Lean on the protect_from_forgery declaration to mark which actions are due
for same-origin request verification. If protect_from_forgery is enabled on
an action, this before_action flags its after_action to v