Question HSTS setup for plesk main hostname

[Bong]

Hi, I've newly setup a plesk server ang used example.com for the hostname
example.com has been enrolled in the hstspreload.org
When I've tried now to check example.com
I got this error
Error: No HSTS headerResponse error: No HSTS header is present on the response.

Question is, where am I going to add the hsts header in plesk for the main hostname

 

[Bong]

Hi, I've newly setup a plesk server ang used example.com for the hostname
example.com has been enrolled in the hstspreload.org
When I've tried now to check example.com
I got this error
Error: No HSTS headerResponse error: No HSTS header is present on the response.

Question is, where am I going to add the hsts header in plesk for the main hostname

By the way, I am using Linux
Plesk Obsidian Web Host Edition
Version 18.0.41