嗨，我正在使用jquery ajax方法来获取登录令牌，但收到此消息
无法加载 https://login.salesforce.com/services/Soap/u/42.0?wsdl： 对预检请求的响应未通过访问控制检查：否 "访问控制允许源"标头存在于请求的上 资源。起源 'https://www.example.com
$(document).ready(function(){
//alert('blnk');
$.ajax({
headers: {
"Accept" :'application/json' //If your header name has spaces or any other char not appropriate
},
url: 'https://login.salesforce.com/services/Soap/u/42.0?wsdl',
contentType: "application/json; charset=utf-8",
type: 'post',dataType: "post",data:JSON.stringify( {username :'demo', password :'demo'}),
crossDomain: true,
success: function(resuklt){
console.log(resuklt);
}});
[enter image description here][1]
});
请使用...
dataType: 'jsonp', //use jsonp data type in order to perform cross domain ajax
crossDomain: true,
在成功功能之前..