This uses the latest release of Onsen UI. In case the issue is not reproducible in desktop browsers, just follow the previous steps and also modify the platform version at the end (you can also open the mentioned site on a device).

Environment

Onsen UI Version: 2.10.8

Framework: react-dom 16.8.6 (I think it also forces react to be 16.8.6)

Framework binding: react-onsenui 1.11.2

Additional libraries: None

Platform: Windows 10, Webpack, Chrome

Encountered problem: If your package manager writes only direct dependecies to your node_modules (pnpm), then onsenui will not be available with it. However, both yarn and npm will download the package just once.

How to reproduce

1. npm i -g pnpm # Install pnpm for non-flat node_modules
2. pnpm install react-onsenui
3. npm start # Still start with npm
4. Fail!!!
5. pnpm install onsenui
6. npm start
7. OK!