I'm using using a 3rd party Content management SDK ("dc-delivery-sdk-js": "^0.11.0") which throws error as you may need appropriate loader when trying to run " npm run build:ssr " (Server Dide Rendering build during local development)

ERROR in ./node_modules/dc-delivery-sdk-js/build/module/lib/client/createContentClientV2Fresh.js 3:37
Module parse failed: Unexpected token (3:37)
You may need an appropriate loader to handle this file type.
| import axiosRetry from 'axios-retry';
| import { createBaseContentClient } from './createBaseContentClient';
> const isThrottled = (error) => error?.response?.status === 429;
| const DEFAULT_RETRY_CONFIG = {
|     retries: 3,
 @ ./node_modules/dc-delivery-sdk-js/build/module/lib/client/createContentClient.js 2:0-74 11:15-41
 @ ./node_modules/dc-delivery-sdk-js/build/module/lib/ContentClient.js
 @ ./node_modules/dc-delivery-sdk-js/build/module/index.js
 @ ./dist/moltonbrown-server/main.js
 @ ./server.ts

ERROR in ./node_modules/dc-delivery-sdk-js/build/module/lib/content/coordinators/FilterByImpl.js 9:42
Module parse failed: Unexpected token (9:42)
You may need an appropriate loader to handle this file type.
|     async fetch(requestConfig) {
|         try {
>             if (!requestConfig.parameters?.locale && this.config?.locale) {
|                 requestConfig.parameters = Object.assign({}, {
|                     ...(requestConfig.parameters || {}),
 @ ./node_modules/dc-delivery-sdk-js/build/module/lib/ContentClient.js 8:0-67 113:19-31
 @ ./node_modules/dc-delivery-sdk-js/build/module/index.js
 @ ./dist/moltonbrown-server/main.js
 @ ./server.ts

I've tried script-loader (https://v4.webpack.js.org/loaders/script-loader/) which resolves the build issue locally but throw error post deployment since its has not suppport for Node.js which actually runs the SSR build in server.

any other alternative webpack loaders or solutions to resolve this issue for Angular 6 project ?