From 6d91b00904f134ea23bcfba529f243833c66ffd8 Mon Sep 17 00:00:00 2001
From: Will-hxw <xiaoweihuacqu@gmail.com>
Date: Mon, 27 Apr 2026 19:30:02 +0800
Subject: [PATCH 1/2] fix: respect npm_config_registry for update checks

Use the npm_config_registry env var (set by npm when invoked
via npx with custom registry config) instead of hardcoding
registry.npmjs.org. Falls back to the default public registry
when the env var is not set.

Fixes #1943
---
 src/bin/check-latest-version.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/bin/check-latest-version.ts b/src/bin/check-latest-version.ts
index eb45674df..7ecce373a 100644
--- a/src/bin/check-latest-version.ts
+++ b/src/bin/check-latest-version.ts
@@ -12,8 +12,11 @@ const cachePath = process.argv[2];
 
 if (cachePath) {
   try {
+    const registry =
+      process.env.npm_config_registry?.replace(/\/$/, '') ||
+      'https://registry.npmjs.org';
     const response = await fetch(
-      'https://registry.npmjs.org/chrome-devtools-mcp/latest',
+      `${registry}/chrome-devtools-mcp/latest`,
     );
     const data = response.ok ? await response.json() : null;
 

From 5462a961b6824cd206484875665ec23c26ce5039 Mon Sep 17 00:00:00 2001
From: Will-hxw <xiaoweihuacqu@gmail.com>
Date: Wed, 29 Apr 2026 06:18:19 +0800
Subject: [PATCH 2/2] fix: use npm config get registry to support direct CLI
 invocation

Instead of only checking npm_config_registry env var (which is only
set when invoked via npx/npm), now uses `npm config get registry`
to read .npmrc regardless of how the CLI was started.

This addresses the maintainer's feedback that the original solution
did not work when DevTools CLI is called directly.
---
 src/bin/check-latest-version.ts | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/bin/check-latest-version.ts b/src/bin/check-latest-version.ts
index 7ecce373a..6e713187a 100644
--- a/src/bin/check-latest-version.ts
+++ b/src/bin/check-latest-version.ts
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+import {execSync} from 'node:child_process';
 import fs from 'node:fs/promises';
 import path from 'node:path';
 import process from 'node:process';
@@ -12,9 +13,15 @@ const cachePath = process.argv[2];
 
 if (cachePath) {
   try {
-    const registry =
-      process.env.npm_config_registry?.replace(/\/$/, '') ||
-      'https://registry.npmjs.org';
+    let registry;
+    try {
+      registry = execSync('npm config get registry', {
+        encoding: 'utf8',
+      }).trim().replace(/\/$/, '');
+    } catch {
+      // npm not on PATH, fall back to default
+    }
+    registry ||= 'https://registry.npmjs.org';
     const response = await fetch(
       `${registry}/chrome-devtools-mcp/latest`,
     );