From cefc685d7f7d9660cff5274d48c51d8f645ab504 Mon Sep 17 00:00:00 2001
From: Lifei Zhou <lifei@squareup.com>
Date: Mon, 18 May 2026 21:23:55 +1000
Subject: [PATCH] fix: reduce excessive MISSING_TRANSLATION warnings for
 fallback locales (#9294)

---
 ui/desktop/src/renderer.tsx | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/ui/desktop/src/renderer.tsx b/ui/desktop/src/renderer.tsx
index c9df7f1ea9..3e6533188a 100644
--- a/ui/desktop/src/renderer.tsx
+++ b/ui/desktop/src/renderer.tsx
@@ -17,6 +17,20 @@ const App = lazy(() => import('./App'));
 
 const TELEMETRY_CONFIG_KEY = 'GOOSE_TELEMETRY_ENABLED';
 
+let warnedFallbackLocale = false;
+function handleIntlError(err: { code: string; message?: string }) {
+  if (err.code === 'MISSING_TRANSLATION' && currentLocale !== currentMessageLocale) {
+    if (!warnedFallbackLocale) {
+      warnedFallbackLocale = true;
+      console.warn(
+        `[i18n] Locale "${currentLocale}" has no translations; falling back to "${currentMessageLocale}".`
+      );
+    }
+    return;
+  }
+  console.error(err);
+}
+
 (async () => {
   // Check if we're in the launcher view (doesn't need goosed connection)
   const isLauncher = window.location.hash === '#/launcher';
@@ -50,7 +64,12 @@ const TELEMETRY_CONFIG_KEY = 'GOOSE_TELEMETRY_ENABLED';
 
   ReactDOM.createRoot(document.getElementById('root')!).render(
     <React.StrictMode>
-      <IntlProvider locale={currentLocale} defaultLocale="en" messages={messages}>
+      <IntlProvider
+        locale={currentLocale}
+        defaultLocale="en"
+        messages={messages}
+        onError={handleIntlError}
+      >
         <Suspense fallback={SuspenseLoader()}>
           <ConfigProvider>
             <ErrorBoundary>