angularjs - 预检响应中的 Access-Control-Allow-Headers 不允许请求 header 字段

angularjs - Request header field is not allowed by Access-Control-Allow-Headers in preflight response

我正在使用库 https://github.com/doedje/jquery.soap/ 将离子应用程序连接到 asmx 网络服务。但是,我收到一个错误:

XMLHttpRequest cannot load http://10.10.9.169/UserService3/WebService1.asmxgetUserbyUsername. Request header field SOAPAction is not allowed by Access-Control-Allow-Headers in preflight response. jquery.soap.js:456 Uncaught Error: Unexpected Content: undefined

这是我的 controller.js 代码:

$scope.enterlogin = function(usern,pass)
{
    $.soap({
        url: 'http://<webservice's ip address>/UserService3/WebService1.asmx',
        method: 'getUserbyUsername',

        data: {
            uname: usern,
            passw: pass
        },

        success: function (soapResponse) {
            console.log('response is = ' + soapResponse);
        },

        error: function (soapResponse) {
            // show error
            console.log('response error is = ' + soapResponse);
        }
     });
}

我还在网络服务的 web.config 文件中添加了以下内容:

<webServices>
  <protocols>
    <add name="HttpGet"/>
    <add name="HttpPost"/>
  </protocols>
</webServices>
<httpHandlers>
    <add verb="GET,HEAD,POST,OPTIONS" path="*.asmx" type="System.Web.UI.WebServiceHandlerFactory" />
</httpHandlers>

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

我是不是漏掉了什么?

错误消息似乎表明请求包含一个名为 SOAPAction.

的 header

因此您似乎需要将 header 名称添加到 web.config 文件的以下部分:

<add name="Access-Control-Allow-Headers"
     value="SOAPAction, Content-Type, Authorization" />