diff --git a/dist/main.js b/dist/main.js
index 55d9312..953a33c 100644
--- a/dist/main.js
+++ b/dist/main.js
@@ -5,7 +5,7 @@
 // @supportURL   https://github.com/Xmader/musescore-downloader/issues
 // @updateURL    https://msdl.librescore.org/install.user.js
 // @downloadURL  https://msdl.librescore.org/install.user.js
-// @version      0.23.11
+// @version      0.23.12
 // @description  download sheet music from musescore.com for free, no login or Musescore Pro required | 免登录、免 Musescore Pro，免费下载 musescore.com 上的曲谱
 // @author       Xmader
 // @match        https://musescore.com/*/*
@@ -54,10 +54,11 @@
 
     // script loader
     new Promise(resolve => {
-      const id = '' + Math.random();
-      w[id] = resolve;
-
-      const stackN = 9
+      const d = new Image()
+      document.body.prepend(d)
+      resolve(d)
+    }).then(d => {
+      const stackN = 10
       let loaderIntro = ''
       for (let i = 0; i < stackN; i++) {
         loaderIntro += `(function ${getRandL()}(){`
@@ -65,12 +66,10 @@
       const loaderOutro = '})()'.repeat(stackN)
       const mockUrl = "https://c.amazon-adsystem.com/aax2/apstag.js"
 
-      setTimeout(`${loaderIntro}const d=new Image();window['${id}'](d);delete window['${id}'];document.body.prepend(d)${loaderOutro}//# sourceURL=${mockUrl}`)
-    }).then(d => {
       d.style.display = 'none';
       d.src = 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==';
       d.once = false;
-      d.setAttribute('onload', `if(this.once)return;this.once=true;this.remove();const GM=window['${gmId}'];delete window['${gmId}'];(` + function a () {
+      d.setAttribute('onload', `const self=this;${loaderIntro}if(self.once)return;self.once=true;self.remove();const GM=window['${gmId}'];delete window['${gmId}'];(` + function a () {
       /** script code here */
 
 
@@ -27514,6 +27513,6 @@ Please pipe the document into a Node stream.\
     // eslint-disable-next-line @typescript-eslint/no-floating-promises
     waitForSheetLoaded().then(main);
 
-    }.toString() + ')()')})
+    }.toString() + `)()${loaderOutro}//# sourceURL=${mockUrl}`)})
 
 }());
diff --git a/package-lock.json b/package-lock.json
index 07d2ee5..5ccbe12 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "musescore-downloader",
-  "version": "0.23.11",
+  "version": "0.23.12",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 38dcd13..7bf0dff 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "musescore-downloader",
-  "version": "0.23.11",
+  "version": "0.23.12",
   "description": "download sheet music from musescore.com for free, no login or Musescore Pro required | 免登录、免 Musescore Pro，免费下载 musescore.com 上的曲谱",
   "main": "dist/main.js",
   "bin": "dist/cli.js",