From 62c795d63f333dd68eedd5f050450da01906a48b Mon Sep 17 00:00:00 2001
From: Lazizbek Ergashev <lazerg2@gmail.com>
Date: Fri, 7 Aug 2026 16:52:23 +0500
Subject: [PATCH] fix(browser): resolve `connectTimeout` from the project
 config (fix #10879) (#10880)

---
 packages/vitest/src/node/browser/sessions.ts |  2 +-
 packages/vitest/src/node/types/browser.ts    |  2 +-
 test/unit/test/browser-sessions.test.ts      | 30 ++++++++++++++++++--
 3 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/packages/vitest/src/node/browser/sessions.ts b/packages/vitest/src/node/browser/sessions.ts
index 7bfe5bc16..1f79796d6 100644
--- a/packages/vitest/src/node/browser/sessions.ts
+++ b/packages/vitest/src/node/browser/sessions.ts
@@ -28,7 +28,7 @@ export class BrowserSessions {
     let isReady = false
     const timeout = setTimeout(() => {
       defer.reject(new Error(`Failed to connect to the browser session "${sessionId}" [${project.name}] within the timeout.`))
-    }, project.vitest.config.browser.connectTimeout ?? 60_000).unref()
+    }, project.config.browser.connectTimeout ?? 60_000).unref()
 
     const resolveIfReady = () => {
       if (!isConnected || !isReady) {
diff --git a/packages/vitest/src/node/types/browser.ts b/packages/vitest/src/node/types/browser.ts
index 4c8c2fdfd..35847d392 100644
--- a/packages/vitest/src/node/types/browser.ts
+++ b/packages/vitest/src/node/types/browser.ts
@@ -321,7 +321,7 @@ export interface BrowserConfigOptions {
 
   /**
    * Timeout for connecting to the browser
-   * @default 30000
+   * @default 60000
    */
   connectTimeout?: number
 
diff --git a/test/unit/test/browser-sessions.test.ts b/test/unit/test/browser-sessions.test.ts
index 2c2c8546e..67f969ad1 100644
--- a/test/unit/test/browser-sessions.test.ts
+++ b/test/unit/test/browser-sessions.test.ts
@@ -2,8 +2,12 @@ import type { TestProject } from 'vitest/node'
 import { afterEach, beforeEach, describe, expect, test, vi } from 'vitest'
 import { BrowserSessions } from '../../../packages/vitest/src/node/browser/sessions'
 
-function createProject(connectTimeout = 100) {
-  return { name: 'browser', vitest: { config: { browser: { connectTimeout } } } } as TestProject
+function createProject(connectTimeout = 100, rootConnectTimeout = connectTimeout) {
+  return {
+    name: 'browser',
+    config: { browser: { connectTimeout } },
+    vitest: { config: { browser: { connectTimeout: rootConnectTimeout } } },
+  } as TestProject
 }
 
 describe('BrowserSessions', () => {
@@ -52,6 +56,28 @@ describe('BrowserSessions', () => {
       await timeoutError
     })
 
+    test('times out with the project connect timeout instead of the root one', async () => {
+      const sessions = new BrowserSessions()
+      const promise = sessions.createSession('session-id', createProject(100, 10), { reject() {} })
+
+      const timeoutError = expect(promise).rejects.toThrowError(
+        'Failed to connect to the browser session "session-id" [browser] within the timeout.',
+      )
+
+      let rejected = false
+      promise.catch(() => {
+        rejected = true
+      })
+
+      await vi.advanceTimersByTimeAsync(11)
+      expect(rejected).toBe(false)
+
+      await vi.advanceTimersByTimeAsync(90)
+      expect(rejected).toBe(true)
+
+      await timeoutError
+    })
+
     test('fails the pool without waiting for the connect timeout', async () => {
       const sessions = new BrowserSessions()
       const poolReject = vi.fn()
-- 
2.51.2