diff --git a/src/components/visualPerformance/index.vue b/src/components/visualPerformance/index.vue
index ea7198f2b3b8e40956401d341f2a548703f0dfc9..85a442524e65ea62125b84ca1ec4203014344c4f 100644
--- a/src/components/visualPerformance/index.vue
+++ b/src/components/visualPerformance/index.vue
@@ -26,9 +26,12 @@ const initLeftChart = () => {
     console.log(Object.keys(performance.timing))
     const label = []
     const data = []
-    for (let key in performance.timing) {
-        label.push(key)
-        data.push(performance.timing[key])
+    for ( let key in performance.timing) {
+        if (performance.timing.hasOwnProperty(key)) {
+            label.push(key)
+            data.push(performance.timing[key])
+        }
+
     }
     const myChart = echarts.init(domInstance);
     const option = {