- Configure custom Content Security Policy for React app compatibility
- Add Permissions-Policy header to disable unnecessary browser features
- Set HSTS to 1 year with preload flag for better transport security
- Update referrer policy to strict-origin-when-cross-origin
- Restrict CORS localhost origins to development environment only
- Production deployments now only allow configured FRONTEND_URL and ADMIN_URL
- Addresses security headers configuration issues from security scan
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
paul
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