发送带有正文的头http请求以导致net/http错误

this

// ErrBodyNotAllowed is returned by ResponseWriter.Write calls
// when the HTTP method or response code does not permit a
// body.
ErrBodyNotAllowed = errors.New("http: request method or response status code does not allow body")

当我用fiddler用body发送HEAD请求时,我得到了400/504错误代码,但在我的应用程序中没有看到任何错误日志。