_headers

## glossaforge — Netlify Security Headers

/*
  # Force HTTPS — 2-year HSTS
  Strict-Transport-Security: max-age=63072000; includeSubDomains; preload

  # Prevent clickjacking
  X-Frame-Options: DENY

  # Prevent MIME-type sniffing
  X-Content-Type-Options: nosniff

  # Strip path/query on cross-origin navigation
  Referrer-Policy: strict-origin-when-cross-origin

  # Permissions Policy — all APIs denied (map is purely display, no user device access)
  Permissions-Policy: accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), camera=(), cross-origin-isolated=(), display-capture=(), document-domain=(), encrypted-media=(), execution-while-not-rendered=(), execution-while-out-of-viewport=(), fullscreen=(self), geolocation=(), gyroscope=(), keyboard-map=(), magnetometer=(), microphone=(), midi=(), navigation-override=(), payment=(), picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), sync-xhr=(self), usb=(), web-share=(), xr-spatial-tracking=()

  # Prevent cross-origin popup attacks
  Cross-Origin-Opener-Policy: same-origin

  # Content Security Policy
  # External resources: cdnjs (Leaflet), Google Fonts, CartoDB tiles, OSM tiles
  Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src https://fonts.gstatic.com; img-src 'self' data: blob: https://*.tile.openstreetmap.org https://*.basemaps.cartocdn.com; connect-src 'self'; frame-src 'none'; frame-ancestors 'none'; object-src 'none'; base-uri 'self'; form-action 'self'; upgrade-insecure-requests

/sw.js
  Cache-Control: no-store, no-cache, must-revalidate
  Pragma: no-cache