Ionic 4 Http request is not working in device but working in broswer

Ionic Framework Ionic Angular
1 
{"headers":{"normalizedNames":{},"lazyUpdate":null,"headers":{}},"status":0,"statusText":"Unknown Error","url":<my-server-url>,"ok":false,"name":"HttpErrorResponse","message":"Http failure response for <my-server-url>: 0 Unknown Error","error":{"isTrusted":true}}
2

Does <my-server-url> start with “https://”? If not, does the problem persist when it does?

3

add the url and how made http request

4

here is the code snippest

import { HttpClient } from ‘@angular/common/http’;

…
getPost(): Observable <any>{

return this.httpClient.get(url);

}

and url: http://ec2-3-22-79-88.us-east-2.compute.amazonaws.com:9000/in/topnews

@Amaldo @rapropos

5

below is the code snippest. It works fine with browser. But it is not working in emulator and anrroid device.

6

could you check is this to deal with CORS? if CORS need to handle from server to accept from different origin.
look for this link.

7

CROSS is enabled in the server side. And I can access the above-mentioned URL from the browser and device browser. I am seeing this problem only in emulator and device app.

soluation: