add all_fream

manifest.json

@@ -22,7 +22,9 @@
       ],
       "js": [
         "scripts/content.js"
-      ]
+      ],
+      "run_at": "document_idle",
+      "all_frames": true
     }
   ],
   "web_accessible_resources": [

scripts/content.js

@@ -1,4 +1,7 @@
 (function () {
+
+    console.log("Content script injected into:", window.location.href);
+
     // 清除之前的高亮样式
     let previousHighlight = null;
     let copyButton = null;