ContentLength正在被剥离

Question

我使用的是webpy0.34，python2.6.6。我也在用mimerender。我试图在我的http响应中包含内容长度，但是由于某些原因，头被删除了。我说removed是因为我可以很好地创建自定义头，并且我可以在客户机上看到这些头。但是，当我尝试设置内容长度时，头永远不会到达客户端。我试过在web.已创建对象（如图所示），我也尝试使用

web.header('Content-Length', len(data))

我做错了什么和/或不理解这些代码是如何工作的？在

^{pr2}$

Answer 1

如果数据作为分块发送（Transfer-Encoding: chunked），则必须省略Content-Length头，as per RFC 2616：

1. [snip]

2. If a Transfer-Encoding header field (section 14.41) is present and has any value other than "identity", then the transfer-length is defined by use of the "chunked" transfer-coding (section 3.6), unless the message is terminated by closing the connection.

3. If a Content-Length header field (section 14.13) is present, its decimal value in OCTETs represents both the entity-length and the transfer-length. The Content-Length header field MUST NOT be sent if these two lengths are different (i.e., if a Transfer-Encoding header field is present). If a message is received with both a Transfer-Encoding header field and a Content-Length header field, the latter MUST be ignored.