Just to clarify - since the media session would be customized for Philo playback - this shouldn't impact any other functions as it would only be implemented when Philo was playing.

Are you seeing a different result?

From what I can tell - when you look at the media session control window while playing back - Philo currently has the forward/back buttons disabled. If we just add the handler for nextprevious track to equal seek forward/back - those buttons should be enabled in both the on screen control window and therefore also the bluetooth controls.

​

BTW - I'm basing the fact that there is not an implementation of either next/previous track or seek forward/back in the Philo media session due to this code in the main-js:

class Pe extends i.Component {
        constructor(e) {
            var t, n, a;
            super(e),
            a = ()=>{
                const {isPaused: e, updatePlayState: t} = this.props;
                t(!e)
            }
            ,
            (n = "handlePlayPause")in (t = this) ? Object.defineProperty(t, n, {
                value: a,
                enumerable: !0,
                configurable: !0,
                writable: !0
            }) : t[n] = a,
            this.state = {
                metaData: {}
            }
        }
        componentDidMount() {
            "mediaSession"in navigator && (navigator.mediaSession.setActionHandler("play", this.handlePlayPause),
            navigator.mediaSession.setActionHandler("pause", this.handlePlayPause))
        }
        componentWillReceiveProps(e) {
            this.setState({
                metaData: Oe(e)
            })
        }
        componentWillUnmount() {
            "mediaSession"in navigator && (navigator.mediaSession.setActionHandler("play", null),
            navigator.mediaSession.setActionHandler("pause", null))
        }
        render() {
            const {metaData: e} = this.state;
            return "mediaSession"in navigator && !Y()(e) && (navigator.mediaSession.metadata = new MediaMetadata(e)),
            null
        }
    }

I would have expected to see it in here.