fix: proper undefined handling

src/app/layout.tsx

@@ -39,6 +39,12 @@ export default function RootLayout({ children }: RootLayoutProps) {
           paddingTop: isEmbed ? 0 : '3.25rem',
         }}
       >
+        {/* <AlertDialog.Root open>
+          <AlertDialog.Content>
+            <AlertDialog.Title>Peepee</AlertDialog.Title>
+          </AlertDialog.Content>
+        </AlertDialog.Root> */}
+
         <Theme
           appearance="dark"
           panelBackground="translucent"

src/core/streams/cdon.ts

@@ -290,7 +290,9 @@ export class CdonWriteStream extends WriteStream {
         this.value(fastStringFormat, value, stringTable),
       );
     } else if (object !== undefined) {
-      const entries = Object.entries(object);
+      const entries = Object.entries(object).filter(
+        ([, value]) => value !== undefined,
+      );
 
       this.uint8(ValueType.Object);
       this.uint32(entries.length);