How to reproduce: ``` git clone repo.git my-app cd my-app npm install npm run start:hmr # or npm run start ``` Now navigate to `http://localhost:8080/about`. Doesn't work. Navigating from `http://localhost:8080/`, and clicking `About` on top does work. If we check what gets offered by the webserver, we can clearly see that for `http://localhost:8080/about` there are no scripts.