Warning "Synchronous XMLHttpRequest on the main thread is deprecated" in webix.js

Webix JS
1

Browser is showing below warning message:

"Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/. webix.js:123"

How can it be avoided?

2

Your application should loads data with a callback function or through a promise.
https://docs.webix.com/desktop__server_customload.html

Avoid using below code:

webix.ajax().sync().get(“some.php”);

webix.ajax().sync().post(“some.php”);