Jquery+；wcf。基本身份验证问题

我的服务使用IIS中设置的基本身份验证进行保护，我正在尝试使用Jquery从服务中获取数据

已启用跨域调用

我有下一个请求头

Host http:\\service.com
User-Agent Mozilla/5.0 (Windows NT 5.1; rv:5.0) Gecko/20100101 Firefox/5.0
Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language en-gb,en;q=0.5
Accept-Encoding gzip, deflate
Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7
Connection keep-alive
Origin null
Access-Control-Request-Me... GET
Access-Control-Request-He... authorization
Pragma no-cache
Cache-Control no-cache

回应

Content-Type text/html
Server Microsoft-IIS/7.5
WWW-Authenticate Basic realm="172.27.131.5"
X-Powered-By ASP.NET
Access-Control-Allow-Orig... *
Access-Control-Allow-Head... *
Date Fri, 12 Aug 2011 08:07:29 GMT
Content-Length 1293

代码

我也试着设置

 beforeSend : function(xhr) {
      xhr.setRequestHeader("Authorization", "Basic " + Base64.encode(username + ':' + password));
        },

但我还有一个错误：

访问控制允许标头不允许请求标头字段授权

---

我做错了什么？

您需要在ajax调用中启用跨域

$.ajax({
     headers : {
        "Authorization" : "Basic TVNF3TQtU1BGMjAx6C12bVxzbW4ydHBvaW50OlF3Z5J0eSEyM6Q1"
     },
     type: "GET",
     url: url,
     crossDomain:true, <--
     xhrFields: {
        withCredentials: true
     }, 
     contentType: "application/json; charset=utf-8",
     dataType: "json",
     success: function(data) {
      alert('ok!');
      formatData(format_type,data);
     },
     error: function(jqXHR, textStatus, errorThrown) {
          alert(textStatus + ' / ' + errorThrown);
     }
  });

$.ajax({
标题：{
“授权”：“基本TVNF3TQTU1BGMJAX6C12BxZBW4YDHBVAW50OLF3Z5J0ESeyM6Q1”
},
键入：“获取”，
url:url，
crossDomain:true，尝试将以下代码添加到WCF项目中的global.asax（仅在iis中托管时有效）：

Jquery向WCF服务发出一个选项调用，以检查该调用是否被允许。您必须匹配确切的头。您还可以在此处下载一个示例：

解决Access Control Allow Origin错误，将数据类型参数修改为
数据类型：'jsonp'
并添加
跨域：true
尝试不带
头的ajax调用
，那么服务将如何进行身份验证？
$.ajax({
     headers : {
        "Authorization" : "Basic TVNF3TQtU1BGMjAx6C12bVxzbW4ydHBvaW50OlF3Z5J0eSEyM6Q1"
     },
     type: "GET",
     url: url,
     crossDomain:true, <--
     xhrFields: {
        withCredentials: true
     }, 
     contentType: "application/json; charset=utf-8",
     dataType: "json",
     success: function(data) {
      alert('ok!');
      formatData(format_type,data);
     },
     error: function(jqXHR, textStatus, errorThrown) {
          alert(textStatus + ' / ' + errorThrown);
     }
  });

protected void Application_BeginRequest(object sender, EventArgs e)
{
    EnableCrossDomainAjaxCall();
}

private void EnableCrossDomainAjaxCall()
{
    HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*");

    if (HttpContext.Current.Request.HttpMethod == "OPTIONS")
    {
        HttpContext.Current.Response.AddHeader("Access-Control-Allow-Methods", "GET, POST");
        HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers", "Content-Type, Authorization, Accept");
        HttpContext.Current.Response.End();
    }
}

$.ajax({
    url: 'https://www.tejastank.com/moderator/v1/series?key='+key,
    data: myData,
    type: 'GET',
    crossDomain: true,
    dataType: 'jsonp',
    success: function() { alert("Success"); },
    error: function() { alert('Failed!'); },
    beforeSend: setHeader
});