Preloading animation for React webpack bundle

Question

I have a single page webapp, which is about 300Kb big. It gets bundled with webpack and uses React/Redux.

How do I put a small loading spinner upfront until

Answer 1

I also encountered with this question with one exception: I wanted to display a loading progress bar. I ended up writing a webpack plugin and a custom asset bootloader. Check out my demo project repository.

Here is the result: