onBuffer callback not working with HLS

i’m trying to use onBuffer to show a loading spinner while the video buffers, however the callback is never fired. the following is my component call

         <ReactPlayer
            ref={this.ref}
            style={style}
            url={this.props.url}
            width={'100%'}
            height={'100%'}
            playing={this.state.playing}
            onDuration={(i) => this.onDurationHandler(i)}
            onProgress={(i) => this.onProgressHandler(i)}
            onBuffer={() => this.onBufferHandler()}
            onPlay={() => this.onPlayHander()}
          />

then higher up in my component i have the following:

          onBufferHandler() {
            console.log('onBufferHandler');
            this.setState({isBuffering: true});
          }

this occurs when trying to play an hls file. the file plays fine, and the other callbacks appear to work the way i expect. is this something i need to do by exposing the hls.js player?

[superbuggy]

I’m experiencing this, too. Should it be defined in src/Player.js?

[srameshr]

Anything on this?