1
在为基本身份验证开发IIS模块的过程中，我遇到了一个问题。该模块在浏览页面时工作正常，但在调用Web服务时，似乎请求没有到达模块，并且一些中间模块控制了请求。HTTP请求未到达IIS模块
使用提琴手时，我发现当在http请求头设置为application/json时，中间模块/处理程序被触发。所以以下请求不起作用：
工作正常时，服务器应该问客户端通过响应设置WWW-Authenticate头发送用户凭据
GET /WebServices/service.asmx/someMethod?param=test HTTP/1.1
Host: localhost
Connection: keep-alive
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.22 (KHTML, like Gecko) Chrome/25.0.1364.152 Safari/537.22
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
Content-Type: application/json
asdfasdf
asdfasdfasdf
响应：通知jsonerror头作为回应
HTTP/1.1 401 Unauthorized
Content-Type: application/json; charset=utf-8
Server: Microsoft-IIS/7.5
jsonerror: true
X-Powered-By: ASP.NET
Date: Mon, 11 Mar 2013 23:49:02 GMT
Content-Length: 105
{"Message":"Authentication failed.","StackTrace":null,"ExceptionType":"System.In
validOperationException"}
这个工作正常：通知没有content-type
GET /WebServices/service.asmx/someMethod?param=test HTTP/1.1
Host: localhost
Connection: keep-alive
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.22 (KHTML, like Gecko) Chrome/25.0.1364.152 Safari/537.22
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
asdfasdf
asdfasdfasdf
和正确的回应是：通知WWW-Authenticate头响应
HTTP/1.1 401 Unauthorized
Location: http://localhost/WebServices/service.asmx/someMethod?param=test
Server: Microsoft-IIS/7.5
WWW-Authenticate: Basic
X-Powered-By: ASP.NET
Date: Mon, 11 Mar 2013 23:59:48 GMT
Content-Length: 0