Caddyfile

0.0.0.0:2015 {
    root /srv

    cache

    log stdout
    
    errors stdout

    gzip {
        level 9
    }

    header / {
        Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
        X-Xss-Protection "1; mode=block"
        X-Content-Type-Options "nosniff"
        X-Frame-Options "DENY"
        Content-Security-Policy "upgrade-insecure-requests"
        Referrer-Policy "strict-origin-when-cross-origin"
        Cache-Control "public, max-age=15, must-revalidate"
        Feature-Policy "accelerometer 'none'; ambient-light-sensor 'none'; autoplay 'self'; camera 'none'; encrypted-media 'none'; fullscreen 'self'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; midi 'none'; payment 'none'; picture-in-picture *; speaker 'none'; sync-xhr 'none'; usb 'none'; vr 'none'"
    }
}

#
# https://github.com/pascalandy/caddy-securityheader
#