Update react.tsx

Co-authored-by: Julius Marminge <jmarminge@gmail.com>

Author: dBianchii

cli/template/extras/src/trpc/react.tsx

@@ -73,10 +73,9 @@ export function TRPCReactProvider(props: { children: React.ReactNode }) {
 
 function getBaseUrl() {
   if (typeof window !== "undefined") return window.location.origin;
-  if (process.env.VERCEL_URL) {
-    if (process.env.VERCEL_ENV === "production")
-      return `https://${process.env.NEXT_PUBLIC_VERCEL_PROJECT_PRODUCTION_URL}`;
-    return `https://${process.env.VERCEL_URL}`;
-  }
+  if (process.env.NEXT_PUBLIC_VERCEL_ENV === "production")
+    return `https://${process.env.NEXT_PUBLIC_VERCEL_PROJECT_PRODUCTION_URL}`;
+  if (process.env.NEXT_PUBLIC_VERCEL_ENV === "preview")
+    return `https://${process.env.NEXT_PUBLIC_VERCEL_URL}`;
   return `http://localhost:${process.env.PORT ?? 3000}`;
 }