netlify.toml

[build]
  command = "JEKYLL_ENV=env-netlify jekyll build"
  publish = "_site/"

[[headers]]
  for = "/*"
  [headers.values]
    X-Frame-Options = "DENY"
    X-XSS-Protection = "1; mode=block"
    Content-Security-Policy = "form-action https:"
    X-Content-Type-Options = "nosniff"
    Referrer-Policy = "strict-origin-when-cross-origin"
    Strict-Transport-Security = "max-age=2592000"
    # Feature-Policy = "vibrate 'none'; geolocation 'none'; midi 'none'; notifications 'none'; push 'none'; sync-xhr 'none'; microphone 'none'; camera 'none'; magnetometer 'none'; gyroscope 'none'; speaker 'none'; vibrate 'none'; fullscreen 'none'; payment 'none'"
    Feature-Policy = "geolocation 'none'; midi 'none'; sync-xhr 'none'; microphone 'none'; camera 'none'; magnetometer 'none'; gyroscope 'none'; speaker 'none'; fullscreen 'none'; payment 'none'"
    # Multi-key header rules are expressed with multi-line strings
    cache-control = '''
      public,
      s-max-age=604800'''