From ea7764d0a772bca59ad78f1e3bbc9a7e2734f456 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Velad=20Galv=C3=A1n?= <ladvan91@hotmail.com>
Date: Tue, 24 Oct 2023 18:15:40 +0200
Subject: [PATCH] fix: Allow parseXmlString when createNodeIterator is not
 available (#5805)

Related to https://github.com/shaka-project/shaka-player/issues/5804
---
 lib/util/xml_utils.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/util/xml_utils.js b/lib/util/xml_utils.js
index 543e986eb3..abe74880d6 100644
--- a/lib/util/xml_utils.js
+++ b/lib/util/xml_utils.js
@@ -397,6 +397,11 @@ shaka.util.XmlUtils = class {
       return null;
     }
 
+    // Cobalt browser doesn't support document.createNodeIterator.
+    if (!('createNodeIterator' in document)) {
+      return rootElem;
+    }
+
     // SECURITY: Verify that the document does not contain elements from the
     // HTML or SVG namespaces, which could trigger script execution and XSS.
     const iterator = document.createNodeIterator(