配置缓存过期时间 - CDN - 阿里云 https://help.aliyun.com/document_detail/27136.html
accept-ranges: bytes
age: 0
ali-swift-global-savetime: 1619162787
content-encoding: gzip
content-length: 6216
content-md5: Sir1y3R61UBlHrSsBRz8WQ==
content-type: application/json
date: Fri, 23 Apr 2021 07:36:10 GMT
eagleid: 3b258ea916191633699787917e
etag: "4A2AF5CB747AD540651EB4AC051CFC59"
last-modified: Fri, 23 Apr 2021 07:00:25 GMT
server: Tengine
timing-allow-origin: *
vary: Accept-Encoding
via: cache45.l2cn1832[38,304-0,M], cache39.l2cn1832[39,0], kunlun15.cn3157[55,55,200-0,H], kunlun19.cn3157[57,0]
x-cache: HIT TCP_REFRESH_HIT dirn:11:927701954
x-oss-cdn-auth: success
x-oss-hash-crc64ecma: 8762412451257301590
x-oss-object-type: Normal
x-oss-request-id: 608278EA9ACC073733CDC3ED
x-oss-server-time: 7
x-oss-storage-class: Standard
x-swift-cachetime: 4
x-swift-savetime: Fri, 23 Apr 2021 07:36:10 GMT