js -> ts

src/pages/api/link-preview.ts

@@ -24,6 +24,7 @@ interface LinkPreviewMeta {
   type: string | null;
   video: string | null;
   themeColor: string | null;
+  trusted: boolean;
 }
 
 // Trusted domains that can be loaded client-side
@@ -73,6 +74,7 @@ function parseMetaTags(html: string, url: string): LinkPreviewMeta {
     type: null,
     video: null,
     themeColor: null,
+    trusted: false,
   };
 
   const decode = str => str?.replace(/&(#(?:x[0-9a-fA-F]+|\d+)|[a-zA-Z]+);/g,
@@ -253,6 +255,13 @@ export async function GET({ request }) {
     }
 
     // Read first 50KB
+    if (!response.body) {
+      return new Response(JSON.stringify({ error: 'Empty response body' }), {
+        status: 502,
+        headers: { 'Content-Type': 'application/json' },
+      });
+    }
+
     const reader = response.body.getReader();
     let html = '';
     let bytesRead = 0;
@@ -281,7 +290,8 @@ export async function GET({ request }) {
     return resp;
 
   } catch (err) {
-    console.error('[link-preview] Error fetching URL:', err.message);
+    const message = err instanceof Error ? err.message : String(err);
+    console.error('[link-preview] Error fetching URL:', message);
     // Don't expose internal error details to client
     return new Response(JSON.stringify({ error: 'Failed to fetch preview' }), {
       status: 500,