"Invalid Authenticity Token" error when logging into support.imply.io

Issue Symptoms

When a user attempts to sign into the Zendesk support portal, they receive the following error message - Forbidden Invalid Authenticity Token error.

Resolution steps

This error is likely caused by a corrupted cookie in the user's browser. The user should start by clearing their cache and cookies, and attempt to sign in again.

If that does not resolve the issue, there is a browser specific guidance on how to proceed in this article: Zendesk support for cookie restricted browsers.

If the error remains, the problem is that the browser has blocked any cookies from the Imply zendesk support portal.

Go through the following steps resolve this error:

Go to your browser Settings.
Click on Advanced.
In the Privacy and Security section, click Site settings
Select Cookies
Uncheck the box next to Block third-party cookies and site data
Alternatively, you can leave “Block third-party cookies and site data” enabled and add "support.imply.io" in the Allow list