The HTTP Strict Transport Security (HSTS) header is not present on 302 (redirect) responses for Portal for ArcGIS.

対処法

There is not currently a workaround to fix this. However, the HSTS header is present on the internal Portal for ArcGIS site if HSTS is configured in the settings. There is only an issue when security scanners run the scan on https://fqdn:7443, and it presumes HSTS is not enabled. This is because the URL redirects to Portal for ArcGIS Home, and the redirect itself does not have the HSTS header present.

再現の手順