if (url.$proxy){
if (url.load)
url.load(this, callback, details);
return;
}
maybe change to :
if (url.$proxy){
if (url.load)
return url.load(this, callback, details);
}
//loads data from external URL
load:function(url,call){
var ajax = webix.AtomDataLoader.load.apply(this, arguments); //load method should return ajax…
this._ajax_queue.push(ajax);