handle reference error

web/src/pages/index.js

@@ -604,9 +604,12 @@ function Home() {
 
 // export default Home
 export default () => {
-  if (typeof window !== 'undefined' && window.location.href.indexOf('localhost') === -1) {
-    window.location.replace('https://supabase.io')
-  } else {
-    window.location.replace('/docs')
+  if (typeof window !== 'undefined') {
+    if (window.location.href.indexOf('localhost') === -1) {
+      window.location.replace('https://supabase.io')
+    } else {
+      window.location.replace('/docs')
+    }
   }
+  return null
 }