AfterRender and webix.once

I want to fire ajax call once when user comes. The situation is below.

There is a datatable and it has onAfterRender event in which fires asyncronical ajax call and it replaces datatable element with new one in suceess call back. And also there is sidebar which shows some page.

For the purpose of calling ajax call at once, I add webix.once() to the function which fires it. However, when user goes to another sidebar page and comes back to this page, webix.once recognize it was already done and ajax call never run…

Could you tell me any solution?
Thank you!

solved