Index: _source/plugins/htmldataprocessor/plugin.js
===================================================================
--- _source/plugins/htmldataprocessor/plugin.js	(revision 5548)
+++ _source/plugins/htmldataprocessor/plugin.js	(revision )
@@ -178,6 +178,12 @@
 					}
 				},
 
+				html : function( element )
+				{
+					delete element.attributes.contenteditable;
+					delete element.attributes[ 'class' ];
+				},
+				
 				body : function( element )
 				{
 					delete element.attributes.spellcheck;