fix

assets/support/support.js

@@ -137,7 +137,7 @@ __PluginManager__.register('support', function(module, exports, require, global)
         var nodeWrap = document.createElement('div');
         nodeWrap.innerHTML = html;
         var r = nodeWrap.firstChild;
-        r.remove();
+        r && r.remove();
         return r;
     }
     function makeNodeList(html = '') {