diff --git a/src/Libraries/Web/Xml/XmlNode.cs b/src/Libraries/Web/Xml/XmlNode.cs
index e1fb1a90e..61e694779 100644
--- a/src/Libraries/Web/Xml/XmlNode.cs
+++ b/src/Libraries/Web/Xml/XmlNode.cs
@@ -42,6 +42,13 @@ public XmlNode FirstChild {
             }
         }
 
+        [ScriptField]
+        public XmlNode FirstElementChild {
+            get {
+                return null;
+            }
+        }
+
         [ScriptField]
         public XmlNode LastChild {
             get {
@@ -49,6 +56,13 @@ public XmlNode LastChild {
             }
         }
 
+        [ScriptField]
+        public XmlNode LastElementChild {
+            get {
+                return null;
+            }
+        }
+
         [ScriptField]
         public XmlNode NextSibling {
             get {
@@ -56,6 +70,13 @@ public XmlNode NextSibling {
             }
         }
 
+        [ScriptField]
+        public XmlNode NextElementSibling {
+            get {
+                return null;
+            }
+        }
+
         [ScriptField]
         [ScriptName("nodeName")]
         public virtual string Name {
@@ -109,6 +130,13 @@ public XmlNode PreviousSibling {
             }
         }
 
+        [ScriptField]
+        public XmlNode PreviousElementSibling {
+            get {
+                return null;
+            }
+        }
+
         [ScriptField]
         [ScriptName("text")]
         public string InnerText {
@@ -145,6 +173,10 @@ public bool HasChildNodes() {
             return false;
         }
 
+        public int ChildElementCount() {
+            return 0;
+        }
+
         public XmlNode InsertBefore(XmlNode child, XmlNode refChild) {
             return null;
         }
@@ -164,5 +196,15 @@ public XmlNode RemoveChild(XmlNode child) {
         public XmlNode ReplaceChild(XmlNode child, XmlNode oldChild) {
             return null;
         }
+
+        public string GetAttribute(string attributename) {
+            return null;
+        }
+
+        public void SetAttribute(string attributename, string attributevalue) {
+        }
+
+        public void RemoveAttribute(string attributename) {
+        }
     }
 }