EXTJS need to parse response from AEM servlet and How to do? There is a case to Add a button into sidekick, which need to be disable(grey) or enable also, controlled by one condition that data stored in AEM, please see following code:CQ.Ext.ns("MyClientLib"); var resultFromAEM; MyClientLib.ContentFinder = { addGsTranslate: function(sk){ var pagePanel = sk.panels["PAGE"]; var button = pagePanel.findBy(function(comp){ return comp["name"] == "Test_button"; }, pagePanel); if(button && button.length > 0){ return; } button = { xtype: "button", scope: sk, name: "Test_button", text: "Test Button", "context": [ CQ.wcm.Sidekick.PAGE ], handler: function(){ //... }, //TODO : “isable” controlled by data if existed in AEM var isable = resultFromAEM; disabled:(isable) }; pagePanel.insert(11,button); sk.actns.push(button); }, }; (function(){ var result; CQ.Ext.Ajax.request({ url: "/bin/customer", method: "GET", params : { }, success: function(response) { //TODO : TO invoke servlet but how to parse response from AEM Servlet var info = Ext.decode(res