控制台错误：无法使用“ in”运算符在JSON数据中搜索“ length”

Question

我正在尝试从Vue中启用了CORS的API渲染表，但是页面上没有任何内容。当我按下“创建表格”按钮时，也会在控制台中收到此错误，该按钮应该构成API数据表格

<progress-button fill-color="#6b02a8" type="button" @click="createTable()">Create table</progress-button>
            <table class="table table-bordered table-striped" id="traceRouteTable">
                <tbody class="table">
                    <tr>
                        <th>Endpoint</th>
                        <th>Trace data</th>
                    </tr>
                    <tr v-for="value in tableData" :key="value.tableData">
                        <td>{{ value.endpoint }}</td>
                        <td>{{ value.trace_data }}</td>
                    </tr>
                </tbody>
            </table>

我正在使用以下功能按下显示数据的按钮：

sendBackData: function () { // Receive traceroute data, followed by the 'Generate data' button
            var jobId = document.getElementById("jobId").innerHTML;
            var message = '{"jobId":"' + jobId + '"}'; // jobId must NOT be changed 
                this.post('https://le75bkfcmg.execute-api.eu-west-2.amazonaws.com/dev/check-trace', message, 
                function(response) {
                    document.getElementById('report').innerHTML = response;

            });
        },

        createTable: function () {

            var tableData = '';

            $.each(this.response, function(key, value) {

                tableData += '<tr>';
                tableData += '<td>' + value.endopoint + '</td>';
                tableData += '<td>' + value.trace_data + '</td>';
                tableData += '<tr>';
            });
            $('#traceRouteTable').append(tableData);

        }

我正在尝试从sendBackData传递“响应”到存储API数据的createData函数，非常感谢您的帮助。我在控制台中遇到的错误：

[Vue warn]: Error in v-on handler: "TypeError: Cannot use 'in' operator to search for 'length' in {"errorMessage":"2019-08-06T08:21:30.219Z dc173b24-4582-4b80-83c2-6df65d8b2d68 Task timed out after 3.00 seconds"}"

found in

---> <VueProgressButton>
       <ProperForm> at src/components/ProperForm.vue
         <App> at src/App.vue
           <Root>

TypeError: Cannot use 'in' operator to search for 'length' in {"errorMessage":"2019-08-06T08:21:30.219Z dc173b24-4582-4b80-83c2-6df65d8b2d68 Task timed out after 3.00 seconds"}
    at isArrayLike (jquery.js?1157:502)
    at Function.each (jquery.js?1157:364)
    at VueComponent.createTable (ProperForm.vue?3dd5:93)
    at click (eval at ./node_modules/cache-loader/dist/cjs.js?