/*
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  Referrer-Policy: strict-origin-when-cross-origin
  Permissions-Policy: camera=(), microphone=(), geolocation=()
/assets/*
  Cache-Control: public, max-age=31536000, immutable
/stockfish/*
  Cache-Control: public, max-age=2592000
/data/*
  Cache-Control: public, max-age=86400
