Tenable security scan found this for Fulcrum node with SSL enabled:
The remote web server is not enforcing HSTS, as defined by RFC 6797. HSTS is an optional response header that can be configured on the server to instruct the browser to only communicate via HTTPS. The lack of HSTS allows downgrade attacks, SSL-stripping man-in-the-middle attacks, and weakens cookie-hijacking protections.
Tenable security scan found this for Fulcrum node with SSL enabled: