JQuery AjaxSetup BeforeSend Promise

Question

I want to return a Promise from a beforeSend interceptor for jQuery. Basically I have a function registered as beforeSend which performs some asynchronous work. I want to defer the AJAX request from executing until my asynchronous work has completed. I know I can return false to cancel the AJAX request from beforeSend , but what about deferring it?

Answer 1

Seems that you are in trouble. BeforeSend for instance can return a boolean value so it loses the promisses benefits. One workaround is create an ajax request and create a new ajax request as a callback in done function. A cascade ajax request should solve your problem.

$.ajax({}).done(function() { $.ajax({}).done(function() {})})