From bf672ee7f9e78142ab3624e41b8f32e81e6634b4 Mon Sep 17 00:00:00 2001
From: leeguooooo <guoli@zhihu.com>
Date: Sat, 28 Feb 2026 11:17:02 +0900
Subject: [PATCH] fix(stealth): avoid matchMedia Illegal invocation

- bind MediaQueryList methods when proxied for prefers-color-scheme light patch

- add regression test for addEventListener/removeEventListener

- bump version to 0.14.0-fork.6 and sync Cargo metadata
---
 cli/Cargo.lock      |  2 +-
 cli/Cargo.toml      |  2 +-
 package.json        |  2 +-
 src/stealth.test.ts | 12 ++++++++++++
 src/stealth.ts      |  8 ++++++--
 5 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/cli/Cargo.lock b/cli/Cargo.lock
index cc854b2..4a0c0fd 100644
--- a/cli/Cargo.lock
+++ b/cli/Cargo.lock
@@ -4,7 +4,7 @@ version = 4
 
 [[package]]
 name = "agent-browser-stealth"
-version = "0.14.0-fork.5"
+version = "0.14.0-fork.6"
 dependencies = [
  "base64",
  "dirs",
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index e950f6a..6a8446b 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "agent-browser-stealth"
-version = "0.14.0-fork.5"
+version = "0.14.0-fork.6"
 edition = "2021"
 description = "Stealth browser automation CLI for AI agents with anti-bot evasions"
 license = "Apache-2.0"
diff --git a/package.json b/package.json
index d67627d..fe9e22b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "agent-browser-stealth",
-  "version": "0.14.0-fork.5",
+  "version": "0.14.0-fork.6",
   "description": "Stealth browser automation CLI for AI agents with anti-bot evasions",
   "type": "module",
   "main": "dist/daemon.js",
diff --git a/src/stealth.test.ts b/src/stealth.test.ts
index 890ea2e..c1663c9 100644
--- a/src/stealth.test.ts
+++ b/src/stealth.test.ts
@@ -127,12 +127,24 @@ describe('Stealth mode', () => {
         activeTextColor,
         prefersLight: matchMedia('(prefers-color-scheme: light)').matches,
         prefersDark: matchMedia('(prefers-color-scheme: dark)').matches,
+        lightListenerCalls: (() => {
+          try {
+            const mql = matchMedia('(prefers-color-scheme: light)');
+            const handler = () => {};
+            mql.addEventListener('change', handler);
+            mql.removeEventListener('change', handler);
+            return 'ok';
+          } catch (error) {
+            return String(error);
+          }
+        })(),
       };
     });
 
     expect(signals.activeTextColor).not.toBe('rgb(255, 0, 0)');
     expect(signals.prefersLight).toBe(false);
     expect(typeof signals.prefersDark).toBe('boolean');
+    expect(signals.lightListenerCalls).toBe('ok');
   });
 
   it('exposes realistic mimeTypes/pdf/share signals', async () => {
diff --git a/src/stealth.ts b/src/stealth.ts
index c993a0f..11993bf 100644
--- a/src/stealth.ts
+++ b/src/stealth.ts
@@ -856,9 +856,13 @@ function patchPrefersColorSchemeHeuristic(): string {
   const patchMediaQueryList = (mql) => {
     if (!mql || typeof mql !== 'object') return mql;
     return new Proxy(mql, {
-      get(target, prop, receiver) {
+      get(target, prop) {
         if (prop === 'matches') return false;
-        return Reflect.get(target, prop, receiver);
+        const value = Reflect.get(target, prop, target);
+        if (typeof value === 'function') {
+          return value.bind(target);
+        }
+        return value;
       },
     });
   };