Issue 4588 - "View source" command doesn't show text nodes

lib/aardvark.js

Index: lib/aardvark.js
===================================================================
--- a/lib/aardvark.js
+++ b/lib/aardvark.js
@@ -733,39 +733,39 @@ let Aardvark = exports.Aardvark =
     switch (node.nodeType)
     {
       case node.ELEMENT_NODE:
         var box = this.window.document.createElement("vbox");
         box.className = "elementBox";
 
         var startTag = this.window.document.createElement("hbox");
         startTag.className = "elementStartTag";
-        if (!node.firstElementChild)
+        if (!node.firstChild)
           startTag.className += " elementEndTag";
 
         this.appendDescription(startTag, "<", null);
         this.appendDescription(startTag, node.tagName, "tagName");
 
         for (var i = 0; i < node.attributes.length; i++)
         {
           var attr = node.attributes[i];
           this.appendDescription(startTag, attr.name, "attrName");
           if (attr.value != "")
           {
             this.appendDescription(startTag, "=", null);
             this.appendDescription(startTag, '"' + attr.value.replace(/"/, "&quot;") + '"', "attrValue");
           }
         }
 
-        this.appendDescription(startTag, node.firstElementChild ? ">" : " />", null);
+        this.appendDescription(startTag, node.firstChild ? ">" : " />", null);
         box.appendChild(startTag);
 
-        if (node.firstElementChild)
+        if (node.firstChild)
         {
-          for (var child = node.firstElementChild; child; child = child.nextElementSibling)
+          for (var child = node.firstChild; child; child = child.nextSibling)
             this.getOuterHtmlFormatted(child, box);
 
           var endTag = this.window.document.createElement("hbox");
           endTag.className = "elementEndTag";
           this.appendDescription(endTag, "<", null);
           this.appendDescription(endTag, "/" + node.tagName, "tagName");
           this.appendDescription(endTag, ">", null);
           box.appendChild(endTag);