please correct the link text:
under basic usage there are these two lines:
> <script src="https://cdn.babylonjs.com/babylon.js"></script> > <script src="https://preview.babylonjs.com/loaders/babylonjs.loaders.min.js"></script>
If you notice, the first one is from the cdn domain, and second from the preview domain.
This tripped me up today when trying to import a GLTF file, as these 2 have some sort of differences such that it fails to load a GLTF.
Correcting my versions to be from the same domain worked fine.