diff --git a/src/components/visualPerformance/index.vue b/src/components/visualPerformance/index.vue
index 85a442524e65ea62125b84ca1ec4203014344c4f..f412a812b611233f0a1b7669e5d3247b001e1faa 100644
--- a/src/components/visualPerformance/index.vue
+++ b/src/components/visualPerformance/index.vue
@@ -27,7 +27,7 @@ const initLeftChart = () => {
     const label = []
     const data = []
     for ( let key in performance.timing) {
-        if (performance.timing.hasOwnProperty(key)) {
+        if (key!='toJSON') {
             label.push(key)
             data.push(performance.timing[key])
         }