MAGETWO-52378: [GitHub] WYSIWYG Editor strips empty HTML codes out #4324

Author: undefined-olha

lib/web/mage/adminhtml/wysiwyg/tiny_mce/html5-schema.js

@@ -46,7 +46,7 @@ define([
     };
 
     schema.flowContent = schema.blockContent.concat(schema.phrasingContent, ['style']);
-    schema.nonEmpty = ['td', 'th', 'iframe', 'video', 'audio', 'object', 'script'].concat(schema.shortEnded);
+    schema.nonEmpty = ['td', 'th', 'iframe', 'video', 'audio', 'object', 'script', 'i', 'em', 'span'].concat(schema.shortEnded);
 
     _.extend(schema, (function (phrasingContent, flowContent) {
         var validElements   = [],