GitHub は uncooked.github を積極的にキャッシュしており、多くの演習ケースを破っています
@antn curl -I -s https://raw.githubusercontent.com/badmojr/1Hosts/master/mini/hosts.txt HTTP/2 200 cache-control: max-age=86400 content-security-policy: default-src ‘none’; style-src ‘unsafe-inline’; sandbox content-type: text/plain; charset=utf-8 etag: “0c9fbcd1ad9cbb7a7b88ebeee74ae1983728ac021b00a9eead64b5a7ce30c95c” strict-transport-security: max-age=31536000 x-content-type-options: nosniff x-frame-options: deny x-xss-protection: 1; mode=block x-github-request-id: F214:521E:AEF30E:EB4622:63E85D80 accept-ranges: bytes date: Sun, 12 Feb 2023 14:07:25 GMT via: 1.1 varnish x-served-by: cache-hhn-etou8220025-HHN x-cache: HIT x-cache-hits: 1 x-timer: S1676210846.645947,VS0,VE5 vary: Authorization,Accept-Encoding,Origin access-control-allow-origin: *…