Headers of https://claret.io/sandbox/210216_claret_14/

HTTP/1.1 200 OK
Date
Thu, 18 Feb 2021 20:56:22 GMT
Content-Type
text/html; charset=UTF-8
Connection
close
Server
Apache
Content-Security-Policy
upgrade-insecure-requests
Feature-Policy
microphone 'none'; geolocation 'none';
X-Frame-Options
DENY
Strict-Transport-Security
max-age=300; includeSubDomains;
X-Content-Type-Options
nosniff
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1; mode=block
Referrer-Policy
strict-origin-when-cross-origin
Cache-Control
max-age=0
Expires
Thu, 18 Feb 2021 20:56:22 GMT
Vary
Accept-Encoding