verdaccio-ui/src/muiComponents/CircularProgress/CircularProgress.tsx

import React, { forwardRef } from 'react';
import { default as MaterialUICircularProgress, CircularProgressProps } from '@material-ui/core/CircularProgress';

type CircularProgressRef = HTMLDivElement;

const CircularProgress = forwardRef<CircularProgressRef, CircularProgressProps>(function CircularProgress(props, ref) {
  return <MaterialUICircularProgress {...props} ref={ref} />;
});

export default CircularProgress;