[bugfix] 解决右键菜单重复添加报错问题

background.js

@@ -2,6 +2,16 @@
 console.clear()
 console.log("[小墨助手]", "Service Worker init success.")
 
+
+
+
+// Events must be registered synchronously from the start of the page.
+chrome.runtime.onInstalled.addListener(() => {
+  console.log("[小墨助手]", "chrome.runtime.onInstalled.")
+
+  // In Chrome, you should create the context menu just once after install/update.
+  // refer: https://stackoverflow.com/questions/64318529/cannot-create-item-with-duplicate-context-menu-id-in-extension
+
   /**
    * 右键菜单
    */
@@ -22,15 +32,11 @@ chrome.contextMenus.onClicked.addListener(function (info) {
     console.log("[小墨助手]", "高级搜索 已点击菜单")
   })
 
-
-// Events must be registered synchronously from the start of the page.
-chrome.runtime.onInstalled.addListener(() => {
-  console.log("[小墨助手]", "chrome.runtime.onInstalled.")
   chrome.contextMenus.create({
     "id": "sampleContextMenu",
     "title": "Sample Context Menu",
     "contexts": ["selection"]
-  });
+  })
 });
 
 //

generate-manifest.js

@@ -56,7 +56,6 @@ var manifest = {
     // "automation": {},
 
     "background": {
-        // "service_worker": "scripts/service_worker/background.js"
         "service_worker": "background.js"
     },