Loader not working....

hi 

 

I develop Web application using angularjs,html and jquery. 

i use ajax for calling API

Loader not working during synchronous ajax call in chrome and IE.

 

I already search on google like 'loader not working in chrome and ie + ajax synchronous call' all link but i can't find appropriate answer.

 

Please help me any code or other working example. i already spent 2 days for this.

 

thanks.