I am getting the following HSTS vulnerability detected from Tenable security port scan:
HSTS Missing From HTTPS Server (RFC 6797)
The remote HTTPS server is not enforcing HTTP Strict Transport Security (HSTS). 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.
The remote web server is not enforcing HSTS.
Would you please share any other ideas, what else I can try?