Update orgDomains.ts

packages/features/ee/organizations/lib/orgDomains.ts

@@ -1,7 +1,15 @@
 import { WEBAPP_URL } from "@calcom/lib/constants";
 
 // Define which hostnames are expected for the app
-export const appHostnames = ["cal.com", "cal.dev", "cal-staging.com", "cal.community", "cal.local:3000"];
+export const appHostnames = [
+  "cal.com",
+  "cal.dev",
+  "cal-staging.com",
+  "cal.community",
+  "cal.local:3000",
+  // ⬇️ Prevents 404 error for normal localhost development, makes it backwards compatible
+  "localhost:3000",
+];
 
 export function getOrgDomain(hostname: string) {
   // Find which hostname is being currently used