_headers

# Cloudflare Pages Headers Configuration
# Security and performance headers for toposlabs.ai

/*
  # Security Headers
  X-Frame-Options: DENY
  X-Content-Type-Options: nosniff
  X-XSS-Protection: 1; mode=block
  Referrer-Policy: strict-origin-when-cross-origin
  Permissions-Policy: camera=(), microphone=(), geolocation=(), payment=(), interest-cohort=()
  Strict-Transport-Security: max-age=31536000; includeSubDomains; preload

  # Cross-Origin Isolation (protect against Spectre)
  Cross-Origin-Embedder-Policy: require-corp
  Cross-Origin-Opener-Policy: same-origin
  Cross-Origin-Resource-Policy: same-origin

  # Content Security Policy (self-hosted fonts, allowing inline scripts/styles for now)
  Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; font-src 'self' data:; img-src 'self' data: https:; connect-src 'self'; frame-ancestors 'none'; base-uri 'self'; form-action 'self'; upgrade-insecure-requests

# HTML files - cache for 1 hour with revalidation
/*.html
  Cache-Control: public, max-age=3600, must-revalidate

# Static assets - cache for 1 year (immutable)
/assets/*
  Cache-Control: public, max-age=31536000, immutable

# Fonts - cache for 1 year
*.woff2
  Cache-Control: public, max-age=31536000, immutable
  Cross-Origin-Resource-Policy: cross-origin

# CSS - cache for 1 year
*.css
  Cache-Control: public, max-age=31536000, immutable
  Cross-Origin-Resource-Policy: cross-origin

# Images - cache for 1 year
*.svg
  Cache-Control: public, max-age=31536000, immutable
*.png
  Cache-Control: public, max-age=31536000, immutable
*.jpg
  Cache-Control: public, max-age=31536000, immutable
*.jpeg
  Cache-Control: public, max-age=31536000, immutable
*.webp
  Cache-Control: public, max-age=31536000, immutable