interactive mode does not work in IE10

[brendanvinson]

Leaflet 1.0.3 Vectorgrid manually built from master on 03/06/2017

IE10 (and I'm assuming below) are not responding to L.Evented events on layers with PBFs on them.

Creating and loading in an arbitrary GeoJSON object using L.geoJSON works fine. Perhaps this could be a fallback?