/*
  X-Content-Type-Options: nosniff
  Referrer-Policy: strict-origin-when-cross-origin
/index.html
  Cache-Control: public, max-age=300
/
  Cache-Control: public, max-age=300
/banner.webp
  Cache-Control: public, max-age=86400
/example_guide.webp
  Cache-Control: public, max-age=86400
/example_guide-2x.webp
  Cache-Control: public, max-age=86400
