fix: wrap stealth navigator overrides in try-catch, add pixelRatio to screen override

packages/daemon/src/stealth/navigator.ts

@@ -7,44 +7,38 @@ export async function injectNavigatorStealth(
   profile: FingerprintProfile
 ): Promise<void> {
   await context.addInitScript((opts) => {
-    Object.defineProperty(navigator, 'webdriver', {
+    // Override navigator properties; wrap in try-catch because stealth plugin may have already
-      get: () => false,
+    // defined some as non-configurable / 用 try-catch 包裹，因为 stealth 插件可能已将某些属性设为不可重定义
-    });
+    function safeDefine(obj: any, prop: string, getter: () => any) {
+      try { Object.defineProperty(obj, prop, { get: getter, configurable: true }); } catch { /* already set */ }
+    }
+
+    safeDefine(navigator, 'webdriver', () => false);
 
     if (navigator.plugins.length === 0) {
-      Object.defineProperty(navigator, 'plugins', {
+      safeDefine(navigator, 'plugins', () => {
-        get: () => {
         const arr = Object.create(PluginArray.prototype);
         arr.length = 0;
         arr.item = () => null;
         arr.namedItem = () => null;
         arr.refresh = () => {};
         return arr;
-        },
       });
     }
 
-    Object.defineProperty(navigator, 'languages', {
+    safeDefine(navigator, 'languages', () => opts.languages);
-      get: () => opts.languages,
+    safeDefine(navigator, 'platform', () => opts.platform);
-    });
+    safeDefine(navigator, 'vendor', () => 'Google Inc.');
-
+    safeDefine(navigator, 'productSub', () => '20030107');
-    Object.defineProperty(navigator, 'platform', {
-      get: () => opts.platform,
-    });
 
     if (!('connection' in navigator)) {
-      Object.defineProperty(navigator, 'connection', {
+      safeDefine(navigator, 'connection', () => ({
-        get: () => ({
         downlink: 10,
         effectiveType: '4g',
         rtt: 50,
         saveData: false,
-        }),
+      }));
-      });
     }
-
-    Object.defineProperty(navigator, 'vendor', { get: () => 'Google Inc.' });
-    Object.defineProperty(navigator, 'productSub', { get: () => '20030107' });
   }, {
     languages: profile.languages,
     platform: profile.platform,

packages/daemon/src/stealth/screen.ts

@@ -28,6 +28,11 @@ export async function injectScreenStealth(
       get: () => opts.colorDepth,
     });
 
+    // Override devicePixelRatio / 覆盖设备像素比
+    Object.defineProperty(window, 'devicePixelRatio', {
+      get: () => opts.pixelRatio,
+    });
+
     // Override window.outerWidth/Height > inner for window decorations / 覆盖 outerWidth/Height 使其 > inner 模拟窗口装饰
     Object.defineProperty(window, 'outerWidth', {
       get: () => opts.outerWidth,
@@ -38,9 +43,10 @@ export async function injectScreenStealth(
   }, {
     screenWidth: screenProfile.width,
     screenHeight: screenProfile.height,
-    availWidth: screenProfile.width,
+    availWidth: screenProfile.width - TASKBAR_HEIGHT, // side taskbar scenario / 侧边任务栏场景
     availHeight: screenProfile.height - TASKBAR_HEIGHT,
     colorDepth: screenProfile.colorDepth,
+    pixelRatio: screenProfile.pixelRatio,
     outerWidth: viewport.width + 16, // window frame chrome / 窗口边框
     outerHeight: viewport.height + 72, // title bar + window frame / 标题栏 + 窗口边框
   });