Guide on incorporating a TypeScript module within a Web Worker in Angular 8

After updating to Angular 8, I decided to try generating a web worker for my app using the CLI. Following the steps in the official guide:

https://angular.io/guide/web-worker

I was able to successfully implement it.

However, when attempting to import a module at the top of app.worker.ts with:

import { MyData } from '../shared/shared.module';

I encountered compile errors: https://i.sstatic.net/npIst.png

Are there any alternative methods for importing modules into web workers?

Answer №1

Encountering an issue with a shared module I attempted to import, I discovered that it had been created using ng generate module. Angular automatically included imports for NgModule, CommonModule, and an @NgModule with declarations and imports in the exported class. These imports provide access to the DOM, which is prohibited for web workers. This caused the compile error I was facing, even though I didn't actually rely on these imports - they were simply included by default.

To resolve the issue, I removed the imports for NgModule, CommonModule, and the entire @NgModule from the shared module. Following this adjustment, the module imported successfully into the web worker without any errors.

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