introduce axios.js
 methods: 
 send () {
axios({
    method:"get",
    url:""
}).then(function(resp){
    console.log(resp);
}).catch(resp => {
    console.log("");
});
},
console error No "Access-Control-Allow-Origin" header is present on the requested resource. Origin" http://xxx.com" is therefore not allowed access.
you can request
normally with jquery"s $.getJSON ().