IE11 HTTPS AJAX XMLHttpRequest: Network Error 0x2eff, Could not complete the operation due to error 00002eff

Question

I have an ajax POST request that can take anywhere between 2 seconds to 30+ minutes. The post request occurs as a result of button click

If the request takes less th

Answer 1

In my case it was custom response code (3020) returned from server. Switched it to 200 and modified SPA client logics, this solved the issue.