Results 3 comments of Kevin K

Workaround: Was able to tap into the navigator's mediaSession using Chrome 83 and bind the events to the play/pause functionality. Tested additionally on Safari 13.1.1, but [Media Session API](https://developer.mozilla.org/en-US/docs/Web/API/Media_Session_API) support...

Looks like upgrading create-react-app's react-scripts to 2.0.0 fixes the issue. #206

On file selection change it calls the file reader. Check your console log, your `stats.json` may have some prepended text causing the JSON parser to throw an error.