ZeoSpec/_headers at master · zeospec/ZeoSpec · GitHub

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# Security Headers for ZeoSpec Website
# Enforce HTTPS
/*
  Strict-Transport-Security: max-age=31536000; includeSubDomains; preload

# Content Security Policy
/*
  Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' https://www.googletagmanager.com https://www.google-analytics.com https://www.clarity.ms https://cdn.jsdelivr.net https://www.gstatic.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com https://cdn.jsdelivr.net; font-src 'self' https://fonts.gstatic.com https://cdn.jsdelivr.net; img-src 'self' data: https:; connect-src 'self' https://www.google-analytics.com https://www.clarity.ms https://docs.google.com; frame-src https://docs.google.com https://timesync.novocall.co; object-src 'none'; base-uri 'self'; form-action 'self' https://docs.google.com;

# XSS Protection
/*
  X-XSS-Protection: 1; mode=block

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

# Prevent clickjacking
/*
  X-Frame-Options: DENY

# Referrer Policy
/*
  Referrer-Policy: strict-origin-when-cross-origin

# Permissions Policy
/*
  Permissions-Policy: geolocation=(), microphone=(), camera=()

# Admin panel - additional security
/admin/*
  X-Frame-Options: DENY
  X-Content-Type-Options: nosniff
  X-XSS-Protection: 1; mode=block
  Referrer-Policy: no-referrer

# API endpoints - if any
/api/*
  X-Frame-Options: DENY
  X-Content-Type-Options: nosniff
  X-XSS-Protection: 1; mode=block

# Long cache for static assets
/assets/*.css
  Cache-Control: public, max-age=31536000, immutable

/js/*.js
  Cache-Control: public, max-age=31536000, immutable

/images/*
  Cache-Control: public, max-age=31536000, immutable

# HTML should not be cached aggressively
/*
  Cache-Control: no-cache