diff --git a/lib/dash/mpd_parser.js b/lib/dash/mpd_parser.js
index 4173b11d5c..ffaeebeb59 100644
--- a/lib/dash/mpd_parser.js
+++ b/lib/dash/mpd_parser.js
@@ -1054,7 +1054,7 @@ shaka.dash.mpd.ContentProtection.prototype.parse = function(parent, elem) {
   // could be application-specific.  Therefore we must capture whatever it
   // contains, and let the application choose a scheme and map it to a key
   // system.
-  this.children = elem.children;
+  this.children = Array.prototype.slice.call(elem.childNodes);
 };
 
 
@@ -1375,14 +1375,14 @@ shaka.dash.mpd.parseChild_ = function(parent, elem, constructor) {
 shaka.dash.mpd.findChild_ = function(elem, name) {
   var childElement = null;
 
-  for (var i = 0; i < elem.children.length; i++) {
-    if (elem.children[i].tagName != name) {
+  for (var i = 0; i < elem.childNodes.length; i++) {
+    if (elem.childNodes[i].tagName != name) {
       continue;
     }
     if (childElement) {
       return null;
     }
-    childElement = elem.children[i];
+    childElement = elem.childNodes[i];
   }
 
   return childElement;
@@ -1402,12 +1402,12 @@ shaka.dash.mpd.findChild_ = function(elem, name) {
 shaka.dash.mpd.parseChildren_ = function(parent, elem, constructor) {
   var parsedChildren = [];
 
-  for (var i = 0; i < elem.children.length; i++) {
-    if (elem.children[i].tagName != constructor.TAG_NAME) {
+  for (var i = 0; i < elem.childNodes.length; i++) {
+    if (elem.childNodes[i].tagName != constructor.TAG_NAME) {
       continue;
     }
     var parsedChild = new constructor();
-    parsedChild.parse.call(parsedChild, parent, elem.children[i]);
+    parsedChild.parse.call(parsedChild, parent, elem.childNodes[i]);
     parsedChildren.push(parsedChild);
   }
 
diff --git a/support.js b/support.js
index 4a6d3cc906..402c0d4d82 100644
--- a/support.js
+++ b/support.js
@@ -230,7 +230,6 @@ function testForKeySystem(ks, required) {
 testForClass(window, 'HTMLMediaElement', true);
 testForClass(window, 'MediaSource', true);
 testForClass(window, 'Promise', true);
-testForProperty(document, 'children', true);
 
 // Optional:
 testForClass(window, 'VTTCue', false);
@@ -314,7 +313,7 @@ function onAsyncComplete() {
   // Synthesize a summary at the top from other properties.
   // Must be done after all async tasks are complete.
   var requiredFeatures = found['HTMLMediaElement'] && found['MediaSource'] &&
-                         found['Promise'] && found['children'];
+                         found['Promise'];
   var qoe = found['getVideoPlaybackQuality'] || found['droppedFrameCount'];
   var subtitles = found['VTTCue'];
   var emeApi = found['MediaKeys'] || found['generateKeyRequest'];