我打算使用Ajax将跨域请求发送到soap
Web服务。Web服务的URL是：http：//example1.asmx？op =
GetVOD

我的代码：

var url = 'http://example1.asmx?op=GetVOD';
var xhr = new XMLHttpRequest();
var strRequest = "<?xml version='1.0' encoding='utf-8'?>" +
"<soap:Envelope xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'>" +
  "<soap:Body>" +
    "<getVODTypeList xmlns='http://tv21.com/' />" + 
  "</soap:Body>" +
"</soap:Envelope>"
xhr.open('POST', url, true);
xhr.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
xhr.setRequestHeader("SOAPAction", "http://tv21.com/getVOD");
xhr.send(strRequest);

在IIS 7服务器端，我已经将这些行添加到文件web.config中

<add name="Access-Control-Allow-Origin" value="*" />
<add name="Access-Control-Allow-Methods" value="GET,PUT,POST,DELETE,OPTIONS" />
<add name="Access-Control-Allow-Headers" value="Content-Type" />

当我在Chrome上运行客户端代码时，出现405错误：

http://example1.asmx?op=GetVOD 405 (Method Not Allowed)
http://example1.asmx?op=GetVOD Invalid HTTP status code 405

有谁知道如何解决这个问题？

预先感谢