diff --git a/bin/main/mainLoader.js b/bin/main/mainLoader.js
index c5be473..e7bcdc2 100644
--- a/bin/main/mainLoader.js
+++ b/bin/main/mainLoader.js
@@ -131,7 +131,7 @@ const prebuildExecuteCode = executeScriptInfo => {
       if (prop === "localStorage" && ${!!executePreferences.localStorage} === false) {
         return undefined
       }
-      if (prop === "XMLHttpRequest" && ${!!executePreferences.XMLHTTPRequest} === false) {
+      if (prop === "XMLHttpRequest" && ${!!executePreferences.XMLHttpRequest} === false) {
         return undefined
       }
       if (prop === "WebSocket" && ${!!executePreferences.WebSocket} === false) {
diff --git a/manager/Ping.js b/manager/Ping.js
index 9675622..cbd3786 100644
--- a/manager/Ping.js
+++ b/manager/Ping.js
@@ -63,7 +63,7 @@ class Ping {
 
   _getService () {
     if (!this.services) return Promise.reject(new Error('services is null'))
-    const choseService = localStorage.getItem('choseService')
+    const choseService = window.localStorage.getItem('choseService')
     if (choseService) {
       this.currentService =
         this.serviceList.find(service => service === choseService) ||
@@ -110,6 +110,7 @@ class Ping {
     })
   }
 
+  // 这个函数没有被使用
   _renderError (err) {
     console.error(err)
     const serverTextDom = document.getElementById('serverText')