approver field is empty not showing any names

[Sukanth GC]

I'm trying to add the approval process and I've setup the approval workflow. But when I try to select an approver no names show up in the field. But, I'm able to add people in other fields like Request participants.
I have checked and the field is configured to be user picker (multiple users)
How should make the names pop up in the approvers field?

[Gonchik Tsymzhitov]

Hi! 

Have you implemented it? https://stackoverflow.com/questions/9516865/how-to-set-a-header-field-on-post-a-form

But you can do it as ajax function 

like this 

$.ajax({    url: 'foo/bar',    headers: { 'X-Atlassian-Token': 'nocheck' }
});

Cheers,

Gonchik Tsymzhitov