diff --git a/alg/pre.wx.js b/alg/pre.wx.js
index 05df429..9ce3a74 100644
--- a/alg/pre.wx.js
+++ b/alg/pre.wx.js
@@ -8,20 +8,9 @@ var performance = {
 Module['instantiateWasm'] = (info, receiveInstance) => {
   console.log("loading wasm...", info);
 
-  // Use dynamic path from global data if available, otherwise fallback to hardcoded path
-  var wasmPath = "pages/emblemscanner/qrtool.wx.wasm.br";
-  try {
-    // Check if we're in a WeChat miniprogram environment and have access to getApp
-    if (typeof getApp !== 'undefined') {
-      var app = getApp();
-      if (app && app.globalData && app.globalData.wasmFilePath) {
-        wasmPath = app.globalData.wasmFilePath;
-        console.log("Using dynamic WASM path:", wasmPath);
-      }
-    }
-  } catch (e) {
-    console.warn("Failed to get dynamic WASM path, using fallback:", e);
-  }
+  // Use provided wasmPath parameter, fallback to hardcoded path
+  var wasmPath = Module.wasmFilePath || "pages/emblemscanner/qrtool.wx.wasm.br";
+  console.log("Using WASM path:", wasmPath);
 
   WebAssembly.instantiate(wasmPath, info).then((result) => {
     console.log("result:", result);
diff --git a/scanner/pages/emblemscanner/emblemscanner.js b/scanner/pages/emblemscanner/emblemscanner.js
index 9073fd8..6e502e4 100644
--- a/scanner/pages/emblemscanner/emblemscanner.js
+++ b/scanner/pages/emblemscanner/emblemscanner.js
@@ -107,7 +107,10 @@ Page({
     scan_mode: 'unknown', // 'camera', 'webview'
     no_web_view: false, // Override web-view rule, force native camera
     worker_processing: false, // Track if worker is currently processing a frame
-    verifying_stage: 0 // Verification spinner animation stage
+    verifying_stage: 0, // Verification spinner animation stage
+    currentPackagePath: 'pages/emblemscanner', // Current package path for dynamic WASM loading
+    wasmFilePath: '', // WASM file path for dynamic loading
+    verify_resp: null // Verification response from API
   },
 
   onLoad(options) {
@@ -123,12 +126,17 @@ Page({
       no_web_view: no_web_view
     });
 
-    // Store current package path in global data for dynamic WASM loading
+    // Store current package path in page data for dynamic WASM loading
     const currentPackagePath = get_current_package_path();
-    getApp().globalData.currentPackagePath = currentPackagePath;
-    getApp().globalData.wasmFilePath = get_wasm_file_path('qrtool.wx.wasm.br');
+    const wasmFilePath = get_wasm_file_path('qrtool.wx.wasm.br');
+
+    this.setData({
+      currentPackagePath: currentPackagePath,
+      wasmFilePath: wasmFilePath
+    });
+
     console.log('Current package path:', currentPackagePath);
-    console.log('WASM file path:', getApp().globalData.wasmFilePath);
+    console.log('WASM file path:', wasmFilePath);
 
     // Log page load for backend reporting (like camera.js)
     this.log("emblemscanner page load");
@@ -163,7 +171,7 @@ Page({
   },
 
   initializeQRTool() {
-    load_qrtool();
+    load_qrtool(this.data.wasmFilePath);
     
     const checkReady = () => {
       if (is_qrtool_ready()) {
@@ -205,13 +213,16 @@ Page({
    */
   setupWorker() {
     // Create worker with dynamic path based on current package location
-    var packagePath = getApp().globalData.currentPackagePath || 'pages/emblemscanner';
+    var packagePath = this.data.currentPackagePath || 'pages/emblemscanner';
     var workerPath = `${packagePath}/worker/index.js`;
     console.log('Creating worker with path:', workerPath);
 
     var worker = wx.createWorker(workerPath, {
       useExperimentalWorker: true,
     });
+
+    // Pass the WASM file path to the worker
+    worker.wasmFilePath = this.data.wasmFilePath;
     
     worker.onMessage((msg) => {
       console.log('Worker message:', msg.type);
@@ -733,8 +744,8 @@ Page({
           resp = res.data;
         }
 
-        // Store verification response
-        getApp().globalData.verify_resp = resp;
+        // Store verification response in page data
+        this.setData({ verify_resp: resp });
 
         if (resp.serial_code) {
           // Let verification animation run for a bit, then redirect with success
@@ -761,12 +772,7 @@ Page({
       this.goToResult(qrCode, null, false);
     };
 
-    // Store global data like camera.js
-    const gd = getApp().globalData;
-    gd.image_data_urls = dataUrls;
-    gd.qr_code = qrCode;
-
-    // Use enhanced upload function with local metadata instead of global data
+    // Use enhanced upload function with local metadata (no global data needed)
     const metadata = {
       real_ip: this.data.real_ip,
       phone_model: this.data.phone_model,
@@ -774,7 +780,7 @@ Page({
       userinfo: this.data.userinfo
     };
 
-    upload_image_data_urls_with_metadata(dataUrls, qrCode, metadata, success, fail, this.data.logs.join("\n"));
+    upload_image_data_urls_with_metadata(dataUrls, qrCode, metadata, success, fail, this.data.logs.join("\n"), null);
   },
 
 
@@ -798,7 +804,7 @@ Page({
       hint_text: '检查补光设置...'
     });
 
-    check_auto_torch(qrcode, (auto_torch, camera_sensitivity) => {
+    check_auto_torch(qrcode, this.data.server_url, (auto_torch, camera_sensitivity) => {
       this.log(`Auto-torch check: ${auto_torch}, sensitivity: ${camera_sensitivity}`);
 
       if (auto_torch) {
diff --git a/scanner/pages/emblemscanner/qrprocessor.js b/scanner/pages/emblemscanner/qrprocessor.js
index d1d8bbe..7e2a9f9 100644
--- a/scanner/pages/emblemscanner/qrprocessor.js
+++ b/scanner/pages/emblemscanner/qrprocessor.js
@@ -7,8 +7,13 @@ var qrtool_ready = false;
 /**
  * Load qrtool WASM module
  */
-function load_qrtool() {
+function load_qrtool(wasmFilePath) {
+  // Load the WASM module
   var m = require('./qrtool.wx.js');
+
+  // Set the WASM file path
+  m.wasmFilePath = wasmFilePath;
+
   m.onRuntimeInitialized = () => {
     qrtool_ready = true;
     qrtool = m;
diff --git a/scanner/pages/emblemscanner/qrtool.wx.js b/scanner/pages/emblemscanner/qrtool.wx.js
index 49f3f82..09366b0 100644
--- a/scanner/pages/emblemscanner/qrtool.wx.js
+++ b/scanner/pages/emblemscanner/qrtool.wx.js
@@ -34,20 +34,9 @@ var performance = {
 };
 Module["instantiateWasm"] = (info, receiveInstance) => {
   console.log("loading wasm...", info);
-  // Use dynamic path from global data if available, otherwise fallback to hardcoded path
-  var wasmPath = "pages/emblemscanner/qrtool.wx.wasm.br";
-  try {
-    // Check if we're in a WeChat miniprogram environment and have access to getApp
-    if (typeof getApp !== "undefined") {
-      var app = getApp();
-      if (app && app.globalData && app.globalData.wasmFilePath) {
-        wasmPath = app.globalData.wasmFilePath;
-        console.log("Using dynamic WASM path:", wasmPath);
-      }
-    }
-  } catch (e) {
-    console.warn("Failed to get dynamic WASM path, using fallback:", e);
-  }
+  // Use provided wasmPath parameter, fallback to hardcoded path
+  var wasmPath = Module.wasmFilePath || "pages/emblemscanner/qrtool.wx.wasm.br";
+  console.log("Using WASM path:", wasmPath);
   WebAssembly.instantiate(wasmPath, info).then(result => {
     console.log("result:", result);
     var inst = result["instance"];
diff --git a/scanner/pages/emblemscanner/upload.js b/scanner/pages/emblemscanner/upload.js
index 1b2d0bc..4c54ff1 100644
--- a/scanner/pages/emblemscanner/upload.js
+++ b/scanner/pages/emblemscanner/upload.js
@@ -1,6 +1,5 @@
-function check_auto_torch(qrcode, cb) {
-  var gd = getApp().globalData;
-  var url = gd.server_url + '/api/v1/check-auto-torch/?qrcode=' + encodeURIComponent(qrcode);
+function check_auto_torch(qrcode, server_url, cb) {
+  var url = server_url + '/api/v1/check-auto-torch/?qrcode=' + encodeURIComponent(qrcode);
   console.log("check_auto_torch:", url);
   const fail = (e) => {
     console.log("failed to check auto torch", e);
@@ -29,25 +28,24 @@ function check_auto_torch(qrcode, cb) {
   });
 }
 
-function upload_image_data_urls(image_data_urls, success, fail, log) {
+function upload_image_data_urls(image_data_urls, success, fail, log, real_ip, qr_code, phone_model, server_url, caller_info) {
     var ui = wx.getStorageSync('userinfo');
-    var gd = getApp().globalData;
     var fd = {
         emblem_id: ui.emblem_id,
         nick_name: ui.nickName,
-        realip: gd.real_ip,
-        qrcode: gd.qr_code,
+        realip: real_ip,
+        qrcode: qr_code,
         angle: 0,
-        phonemodel: gd.phone_model,
+        phonemodel: phone_model,
         image_data_urls,
         use_roi_verify: 1,
         log,
     };
-    var ci = gd.caller_info;
+    var ci = caller_info;
     if (ci && ci.token) {
         fd.token = ci.token;
     }
-    var url = gd.server_url + '/api/v1/qr-verify/';
+    var url = server_url + '/api/v1/qr-verify/';
     console.log("wx.request", url, fd.qrcode, fd.angle, fd.phonemodel, fd.realip);
     wx.request({
       url,
@@ -61,8 +59,7 @@ function upload_image_data_urls(image_data_urls, success, fail, log) {
     });
 }
 
-function upload_image_data_urls_with_metadata(image_data_urls, qrcode, metadata, success, fail, log) {
-    var gd = getApp().globalData;
+function upload_image_data_urls_with_metadata(image_data_urls, qrcode, metadata, success, fail, log, caller_info) {
     var fd = {
         emblem_id: metadata.userinfo.emblem_id,
         nick_name: metadata.userinfo.nickName,
@@ -74,7 +71,7 @@ function upload_image_data_urls_with_metadata(image_data_urls, qrcode, metadata,
         use_roi_verify: 1,
         log,
     };
-    var ci = gd.caller_info;
+    var ci = caller_info;
     if (ci && ci.token) {
         fd.token = ci.token;
     }
diff --git a/scanner/pages/emblemscanner/worker/index.js b/scanner/pages/emblemscanner/worker/index.js
index b754cea..a2a3ba7 100644
--- a/scanner/pages/emblemscanner/worker/index.js
+++ b/scanner/pages/emblemscanner/worker/index.js
@@ -1,6 +1,14 @@
 console.log("hello from emblemscanner worker");
 
-let qrtool = require('./qrtool.wx.js');
+// Set WASM file path before loading qrtool
+// The wasmFilePath will be passed from the main thread when the worker is created
+if (typeof worker !== "undefined" && worker.wasmFilePath) {
+  let qrtoolModule = require('./qrtool.wx.js');
+  qrtoolModule.wasmFilePath = worker.wasmFilePath;
+  let qrtool = qrtoolModule;
+} else {
+  let qrtool = require('./qrtool.wx.js');
+}
 
 
 
diff --git a/scanner/pages/emblemscanner/worker/qrtool.wx.js b/scanner/pages/emblemscanner/worker/qrtool.wx.js
index 49f3f82..09366b0 100644
--- a/scanner/pages/emblemscanner/worker/qrtool.wx.js
+++ b/scanner/pages/emblemscanner/worker/qrtool.wx.js
@@ -34,20 +34,9 @@ var performance = {
 };
 Module["instantiateWasm"] = (info, receiveInstance) => {
   console.log("loading wasm...", info);
-  // Use dynamic path from global data if available, otherwise fallback to hardcoded path
-  var wasmPath = "pages/emblemscanner/qrtool.wx.wasm.br";
-  try {
-    // Check if we're in a WeChat miniprogram environment and have access to getApp
-    if (typeof getApp !== "undefined") {
-      var app = getApp();
-      if (app && app.globalData && app.globalData.wasmFilePath) {
-        wasmPath = app.globalData.wasmFilePath;
-        console.log("Using dynamic WASM path:", wasmPath);
-      }
-    }
-  } catch (e) {
-    console.warn("Failed to get dynamic WASM path, using fallback:", e);
-  }
+  // Use provided wasmPath parameter, fallback to hardcoded path
+  var wasmPath = Module.wasmFilePath || "pages/emblemscanner/qrtool.wx.wasm.br";
+  console.log("Using WASM path:", wasmPath);
   WebAssembly.instantiate(wasmPath, info).then(result => {
     console.log("result:", result);
     var inst = result["instance"];