security-headers.nginx.conf

# Include this in your server block Nginx configuration

add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
add_header Content-Security-Policy "default-src 'none'; script-src 'none'; connect-src 'self'; img-src 'self'; style-src 'self'; font-src 'self'; frame-ancestors 'none'; form-action 'self'; base-uri 'self'; require-trusted-types-for 'script'; upgrade-insecure-requests; trusted-types 'none'" always;
add_header Referrer-Policy "no-referrer" always;
add_header Permissions-Policy "accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), bluetooth=(), camera=(), clipboard-read=(), clipboard-write=(), display-capture=(), document-domain=(), encrypted-media=(), fullscreen=(), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), midi=(), payment=(), picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), serial=(), speaker-selection=(), sync-xhr=(), usb=(), xr-spatial-tracking=()" always;
add_header Cross-Origin-Resource-Policy "same-origin" always;
add_header Cross-Origin-Embedder-Policy "require-corp" always;
add_header Cross-Origin-Opener-Policy "same-origin" always;

# obsolete and replaced with Content-Security-Policy frame-ancestors 'none'
add_header X-Frame-Options "DENY" always;
# obsolete, unsafe and replaced with strong Content-Security-Policy
add_header X-XSS-Protection "0" always;