diff --git a/web/__tests__/develop/develop-page-flow.test.tsx b/web/__tests__/develop/develop-page-flow.test.tsx
index 703f7362f1..5fe78fb3a6 100644
--- a/web/__tests__/develop/develop-page-flow.test.tsx
+++ b/web/__tests__/develop/develop-page-flow.test.tsx
@@ -6,27 +6,12 @@
  *
  * Uses real DevelopMain, ApiServer, and Doc components with minimal mocks.
  */
-import { act, render, screen, waitFor } from '@testing-library/react'
+import { render, screen, waitFor } from '@testing-library/react'
 import userEvent from '@testing-library/user-event'
-import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
 import DevelopMain from '@/app/components/develop'
 import { AppModeEnum, Theme } from '@/types/app'
 
-beforeEach(() => {
-  vi.useFakeTimers({ shouldAdvanceTime: true })
-})
-
-afterEach(() => {
-  vi.runOnlyPendingTimers()
-  vi.useRealTimers()
-})
-
-async function flushUI() {
-  await act(async () => {
-    vi.runAllTimers()
-  })
-}
-
 let storeAppDetail: unknown
 
 vi.mock('@/app/components/app/store', () => ({
@@ -85,6 +70,10 @@ vi.mock('@/service/knowledge/use-dataset', () => ({
   useInvalidateDatasetApiKeys: () => vi.fn(),
 }))
 
+vi.mock('@/app/components/develop/secret-key/secret-key-modal', () => ({
+  default: ({ isShow }: { isShow: boolean }) => (isShow ? <div aria-label="Secret key modal" role="dialog" /> : null),
+}))
+
 // ---------- tests ----------
 
 describe('DevelopMain page flow', () => {
@@ -159,7 +148,7 @@ describe('DevelopMain page flow', () => {
   })
 
   it('should open API key modal from the page', async () => {
-    const user = userEvent.setup({ advanceTimers: vi.advanceTimersByTime })
+    const user = userEvent.setup()
 
     storeAppDetail = {
       id: 'app-1',
@@ -171,14 +160,11 @@ describe('DevelopMain page flow', () => {
     render(<DevelopMain appId="app-1" />)
 
     // Click API Key button in the header
-    await act(async () => {
-      await user.click(screen.getByText('appApi.apiKey'))
-    })
-    await flushUI()
+    await user.click(screen.getByText('appApi.apiKey'))
 
     // SecretKeyModal should open
     await waitFor(() => {
-      expect(screen.getByText('appApi.apiKeyModal.apiSecretKey')).toBeInTheDocument()
+      expect(screen.getByRole('dialog', { name: 'Secret key modal' })).toBeInTheDocument()
     })
   })
 
diff --git a/web/__tests__/explore/explore-app-list-flow.test.tsx b/web/__tests__/explore/explore-app-list-flow.test.tsx
index 40f2156c06..accdb6014c 100644
--- a/web/__tests__/explore/explore-app-list-flow.test.tsx
+++ b/web/__tests__/explore/explore-app-list-flow.test.tsx
@@ -62,6 +62,15 @@ vi.mock('@/context/app-context', () => ({
   useAppContext: vi.fn(),
 }))
 
+vi.mock('@/context/global-public-context', () => ({
+  useGlobalPublicStore: () => ({
+    systemFeatures: {
+      enable_explore_banner: false,
+      enable_trial_app: false,
+    },
+  }),
+}))
+
 vi.mock('@/service/use-common', () => ({
   useMembers: vi.fn(),
 }))
@@ -108,6 +117,10 @@ vi.mock('@/app/components/app/create-from-dsl-modal/dsl-confirm-modal', () => ({
   ),
 }))
 
+vi.mock('@/app/components/explore/try-app', () => ({
+  default: () => null,
+}))
+
 const createApp = (overrides: Partial<App> = {}): App => ({
   app: {
     id: overrides.app?.id ?? 'app-id',
diff --git a/web/vite.config.ts b/web/vite.config.ts
index de74154651..12eca33cda 100644
--- a/web/vite.config.ts
+++ b/web/vite.config.ts
@@ -84,6 +84,7 @@ export default defineConfig(({ mode }) => {
 
     // Vitest config
     test: {
+      detectAsyncLeaks: true,
       environment: 'jsdom',
       globals: true,
       setupFiles: ['./vitest.setup.ts'],
diff --git a/web/vitest.setup.ts b/web/vitest.setup.ts
index e63ea2b54e..46ec7e5b4b 100644
--- a/web/vitest.setup.ts
+++ b/web/vitest.setup.ts
@@ -98,6 +98,10 @@ afterEach(async () => {
   await act(async () => {
     cleanup()
   })
+
+  // Give Headless UI transition scheduler tasks one event-loop turn to settle
+  // so detectAsyncLeaks does not report teardown false positives.
+  await new Promise<void>(resolve => setTimeout(resolve, 0))
 })
 
 // mock foxact/use-clipboard - not available in test environment