Http 417 状态码
更新时间: 2019-09-04 09:34
417 Expectation Failed在请求头 Expect 中指定的预期内容无法被服务器满足，或者这个服务器是一个代理服务器，它有明显的证据证明在当前路由的下一个节点上，Expect 的内容无法被满足。
Nginx Essentials
Valery Kholodkov / Packt Publishing / 2015-7-1 / USD 34.99
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