React router + loadable components = flashing problem

This is the copy of SSR example in loadable components https://github.com/gregberge/loadable-components/blob/master/examples/server-side-rendering/README.md

Steps to reproduce:

1. Download repository

git clone https://github.com/ashgaliyev/react-router-loadable-components-flashing-problem

2. install project dependencies

yarn

3. run locally

yarn start