Ionic DevApp Response with status:0 for url:null

Ionic Framework ionic-v3
1

Hello All,
Well Im trying to use DevApp application, my Application work properly but when i tried to login error appear response with status : 0 but in browser work properly.

this my server URL

export let serverUrl = “http://192.168.57.128:8089/api”

any idea why when using DevApp i cannot make any request but on my browser work properly.

thanks in advance