Issue with default MapBox id

[Toutouwai]

The MapBox provider code is:

//...
MapBox: {
    url: 'https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}{r}.png?access_token={accessToken}',
    options: {
        attribution:
            'Imagery from <a href="http://mapbox.com/about/maps/">MapBox</a> &mdash; ' +
            'Map data {attribution.OpenStreetMap}',
        subdomains: 'abcd',
        id: 'streets',
        accessToken: '<insert your access token here>',
    }
},
//...

This causes 404s on the map tiles when the default id is used.

Either the default id should be mapbox.streets, or if ids are supposed be supplied without the mapbox. prefix then the url should be https://api.tiles.mapbox.com/v4/mapbox.{id}/{z}/{x}/{y}{r}.png?access_token={accessToken}