带有ajax请求的CORS错误[重复]

Question

我正在用ajax执行这个请求，但是关于CORS我仍然有以下错误:XMLHttpRequest不能加载https://cubber.zendesk.com/api/v2/organizations/37520251/users.json。在飞行前响应中，Access-Control-Allog-Headers不允许请求头字段Access-Control-Allog-Origin。你能帮我pls吗？我看了很多话题，但我还是不明白为什么它不起作用

 function afficheorga(a){
      $.ajax({
          url: "https://cubber.zendesk.com/api/v2/users/"+a+"/organizations.json",
          type: 'GET',
          dataType: 'json',
          cors: true ,
          contentType:'application/json',
          secure: true,
                    headers: {
                        'Access-Control-Allow-Origin': '*',
                    },
          beforeSend: function (xhr) {
              xhr.setRequestHeader ("Authorization", "Basic " + btoa(""));
          },
          success: function (data){
            console.log(data.organizations[0].name);
            var organisation = data.organizations[0].name;
            $("#company").text(organisation);
          }
        })
    }

Answer 1

您可以通过使用JSONP来解决这个问题。将datatype更改为jsonp，这样您的get请求应该如下所示

function afficheorga(a){
      $.ajax({
          url: "https://cubber.zendesk.com/api/v2/users/"+a+"/organizations.json",
          type: 'GET',
          dataType: 'jsonp',
          cors: true ,
          contentType:'application/json',
          secure: true,
          headers: {
            'Access-Control-Allow-Origin': '*',
          },
          beforeSend: function (xhr) {
            xhr.setRequestHeader ("Authorization", "Basic " + btoa(""));
          },
          success: function (data){
            console.log(data.organizations[0].name);
            var organisation = data.organizations[0].name;
            $("#company").text(organisation);
          }
      })
}