axios 解决跨域cookie丢失问题

axios.defaults.withCredentials = true;
var param = new URLSearchParams();
param.append("vCode",vcode);
axios.post('http://localhost',param)
.then(function(res) {
var rs=res.data;
console.log(rs.data);
})
.catch(function(err) {
console.log(err);
});