From 715a036ebbbcffb16b379698a2e5c8f9fe7fe8b1 Mon Sep 17 00:00:00 2001
From: JC Brand <jc@opkode.com>
Date: Sat, 21 Dec 2024 16:32:45 +0200
Subject: [PATCH] Bugfix. Handle `null` and `undefined` values.

---
 src/stanza.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/stanza.js b/src/stanza.js
index 3944fa6..e7f1bb8 100644
--- a/src/stanza.js
+++ b/src/stanza.js
@@ -102,7 +102,7 @@ export class Stanza extends Builder {
                                   .join('')
                             : value instanceof Stanza || value instanceof Builder
                               ? value
-                              : xmlescape(value.toString()))
+                              : xmlescape((value ?? '').toString()))
                     );
                 }, '')
                 .trim();