change to check having url instead valid url

templates/types/streaming/nextjs/app/components/ui/chat/index.ts

@@ -1,5 +1,4 @@
 import { JSONValue } from "ai";
-import { isValidUrl } from "../lib/utils";
 import ChatInput from "./chat-input";
 import ChatMessages from "./chat-messages";
 
@@ -113,7 +112,7 @@ function preprocessSourceNodes(nodes: SourceNode[]): SourceNode[] {
   // Filter source nodes has lower score
   nodes = nodes
     .filter((node) => (node.score ?? 1) > NODE_SCORE_THRESHOLD)
-    .filter((node) => isValidUrl(node.url))
+    .filter((node) => node.url && node.url !== "")
     .sort((a, b) => (b.score ?? 1) - (a.score ?? 1))
     .map((node) => {
       // remove trailing slash for node url if exists

templates/types/streaming/nextjs/app/components/ui/lib/utils.ts

@@ -4,13 +4,3 @@ import { twMerge } from "tailwind-merge";
 export function cn(...inputs: ClassValue[]) {
   return twMerge(clsx(inputs));
 }
-
-export function isValidUrl(url?: string): boolean {
-  if (!url) return false;
-  try {
-    new URL(url);
-    return true;
-  } catch (_) {
-    return false;
-  }
-}