Please tell me, the ajax request sent by vue-resource is always nill.

Excuse me, dear masters,
When I use vue-resource to make ajax requests, the response is always null, but JQuery can respond normally when making requests. Please tell me what is going on,

<code>created:function () {
                var vm = this;
                $.get('/a', function (data) {
                    vm.list = data;
                });   //JQuery请求

               this.$http.get('/a', function (data) {
                   vm.list = data;
               }); //Vue-resource请求
            },</code>

Reply content:

Excuse me, dear masters,
When I use vue-resource to make ajax requests, the response is always null, but JQuery can respond normally when making requests. Please tell me what is going on,

<code>created:function () {
                var vm = this;
                $.get('/a', function (data) {
                    vm.list = data;
                });   //JQuery请求

               this.$http.get('/a', function (data) {
                   vm.list = data;
               }); //Vue-resource请求
            },</code>

Vue.http.options.emulateJSON = true

@阿发 Thanks, but adding this sentence has no effect,
Just checked it, it received Response { url="/a", ok=true, status=200, more... } Such an object.
I use this form and can access it normally

<code>`this.$http.get('/a').then(({data})=>{
                    vm.list = data;
                    console.log(data);
                },(data)=>{
                    console.log(data);
                })`</code>