Angular project WebViewer integration issues

The following features are available in:

PDF.js Express Viewer

PDF.js Express Viewer is a free viewer with limited capabilities compared to PDF.js Express Plus

PDF.js Express Plus

PDF.js Express Plus is a commercial PDF SDK for viewing, annotating, signing, form filling and more

The WebViewer does not load properly and the HTML component is recursively re-rendered inside (see image below). How should I fix this?
This error has likely occurred because WebViewer can't find it's library. Please make sure that you have done the following:
- The library containing the webviewer.min.js file is not located inside the PROJ_PATH/src/app/ folder or any of its sub-folders
- You have correctly added the path to webviewer.min.js to the scripts array under the build options array in angular.json
- You have correctly added the path to the library in the assets array under the build options in angular.json