StandaloneSceneLoader issue

Web Support
1

Hi all,

I noticed today that the standaloneSceneLoader on vtk.js example page does not work anymore. The window does not load, and using the html file to load a previously generated vtkjs or the toy data given results in a black screen on firefox 68.0.1

2

All example automatically load the polyfill which means the line import 'babel-polyfill'; should be removed from the example. Feel free to submit a MR.