HTTP HEAD和GET结果不同 [英] HTTP HEAD and GET different result

问题描述

HEAD 和 GET 方法是否应返回相同的状态代码？更具体地说，当我们执行 HEAD 时，我们遇到客户网站返回 200 的情况，但是当我们执行 GET 时，返回 303 。它与根据位置重定向到特定于语言的页面有关，但不应该 HEAD 然后还要求您重定向？

Should the HEAD and GET methods return the same status code? More specifically, we have run into the situation where a client website is returning a 200 when we do a HEAD, but returns a 303 when we do a GET. It has to do with redirecting to a language specific page based on location, but shouldn't the HEAD then also ask you to redirect?

推荐答案

但是HEAD不应该要求你重定向吗？

关键是单词应该。来自 HTTP方法规范，RFC2616 ：

9.4 HEAD

除了服务器<$ c外，HEAD方法与GET相同$ c>绝不能在响应中返回一个消息体。响应HEAD请求的HTTP标头中包含的元信息 SHOULD 与响应GET请求时发送的信息相同。

9.4 HEAD

The HEAD method is identical to GET except that the server MUST NOT return a message-body in the response. The metainformation contained in the HTTP headers in response to a HEAD request SHOULD be identical to the information sent in response to a GET request.

单词应该进一步明确 RFC2119 ：

应该 这个词，或形容词推荐，意味着
可能存在有效理由，在特殊情况下忽略
特殊项目，但必须理解全部含义，并在选择不同的课程之前仔细权衡
。

SHOULD This word, or the adjective "RECOMMENDED", mean that there may exist valid reasons in particular circumstances to ignore a particular item, but the full implications must be understood and carefully weighed before choosing a different course.

所以，案例你描述的是合法的，但不推荐。您可能需要向网站维护者询问此路径的原因。

So, the case you described is legit, but not recommended. You may want to ask the site maintainer for the reasoning of this path.

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