From 6544f023e5168a93b8a183459fea2d5ced66a1d8 Mon Sep 17 00:00:00 2001
From: boyska <piuttosto@logorroici.org>
Date: Sun, 5 Dec 2021 17:39:52 +0100
Subject: [PATCH] FIX document parsing and setting priorities

---
 radiomanifest.js | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/radiomanifest.js b/radiomanifest.js
index ebdbf38..2fc20d5 100644
--- a/radiomanifest.js
+++ b/radiomanifest.js
@@ -34,11 +34,12 @@ class Radio {
   }
 
   static fromDOM (xml) {
-    let res = xml.evaluate('/radio-manifest/streaming/source', xml)
+    const doc = xml.cloneNode(true)
+    let res = doc.evaluate('/radio-manifest/streaming/source', doc, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null)
     const sources = []
-    while (true) {
-      const src = res.iterateNext()
-      if (src === null) break
+    for (let i = 0; i < res.snapshotLength; i++) {
+      const src = res.snapshotItem(i)
+
       if (!src.hasAttribute('priority')) {
         src.setAttribute('priority', '0')
       } else if (parseInt(src.getAttribute('priority'), 10) < 0) {
@@ -50,7 +51,7 @@ class Radio {
       return parseInt(a.getAttribute('priority', 10)) < parseInt(b.getAttribute('priority', 10))
     })
 
-    res = xml.evaluate('/radio-manifest/schedule', xml)
+    res = doc.evaluate('/radio-manifest/schedule', doc)
     const scheduleEl = res.iterateNext()
     let schedule = null
     if (scheduleEl !== null) {