From d17be734eae44e70271a4d7ab5c93895ed4732e8 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Mon, 17 Aug 2026 04:53:36 +0000
Subject: [PATCH] Add Vercel Analytics self-exclusion via localStorage
 va-disable

Drop Web Analytics events when localStorage.va-disable is set, matching
the official beforeSend opt-out pattern. Guard localStorage so missing
or blocked storage cannot crash the client.

Co-authored-by: Stephen Wu <wustep@users.noreply.github.com>
---
 src/main.tsx | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/main.tsx b/src/main.tsx
index 2ebe757..4f2665e 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -1,12 +1,23 @@
 import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
-import { Analytics } from '@vercel/analytics/react'
+import { Analytics, type BeforeSendEvent } from '@vercel/analytics/react'
 import './index.css'
 import App from './App.tsx'
 
+function analyticsBeforeSend(event: BeforeSendEvent) {
+  try {
+    if (typeof localStorage !== 'undefined' && localStorage.getItem('va-disable')) {
+      return null
+    }
+  } catch {
+    // localStorage can be missing or throw (privacy mode / non-browser).
+  }
+  return event
+}
+
 createRoot(document.getElementById('root')!).render(
   <StrictMode>
     <App />
-    <Analytics />
+    <Analytics beforeSend={analyticsBeforeSend} />
   </StrictMode>,
 )