Log in Authentification not working "Forbidden - Invalid authenticity token" Solved

Recently I had an issue with logging in to my support agent account on our subdomain.

Error message "Forbidden - Invalid authenticity token"

No reset of password was possible at all.

Cause: Zendesk login requires 3rd party cookies to be allowed.

Solution: Either - allow third party cookies OR make 3rd party cookie exceptions as below.

Chrome - 3rd party cookie settings.

• Chrome Settings
• Search for Cookies
• Click on "Cookies and other site data"
• Scroll past the general settings and find "Customised behaviors"
• Add sites to the 'Sites that can always use cookies' list, and include 3rd Party Cookies.

Refresh your page, and log in!