How to invoke external REST API from inside LucidChart extension plugin

I am trying to call an external REST API the way shown below, the script runs well through debug-server, but it fails with error when it is packaged and uploaded to run normally. 

import {EditorClient, Menu, MenuType, Viewport} from 'lucid-extension-sdk';
import {prepareData} from './preparedata';
import axios from 'axios';

const client = new EditorClient();
const menu = new Menu(client);
const viewport = new Viewport(client);

client.registerAction('testAction',  () => {
    const data = new prepareData(client,viewport);
    data.analyzeData();

    const response =  axios.get('https://google.com')
    console.log(response)
});

menu.addMenuItem({
    label: 'test label',
    action: 'testAction',
    menuType: MenuType.Main,
});

Also the code below was tried out with 

import {EditorClient, Menu, MenuType, Viewport,XHRRequest} from 'lucid-extension-sdk';
import {prepareData} from './preparedata';
import axios from 'axios';

const client = new EditorClient();
const menu = new Menu(client);
const viewport = new Viewport(client);

client.registerAction('testAction',  () => {
    const data = new prepareData(client,viewport);
    data.analyzeData();

    var request : XHRRequest = {url:'https://google.com',method:'GET',headers:{'Content-Type':'application/json'},data:"Hi"}
    const response = client.xhr(request)
    console.log(response)
});

menu.addMenuItem({
    label: 'test label',
    action: 'testAction',
    menuType: MenuType.Main,
});

With the XHRRequest I get the following error message

Could you explain how to do it the right/intended way?