Is the esplit enivornment not available anymore?
Thanks,
Michael
Here is the correct link as the CDN is now case sensitive https://playground.babylonjs.com/#JA1ND3#881
cc @RaananW to see if he can do magic 
Also where did you get the link from as we should update the source.
That would be the best fix. I will upload Espillit to our assets repo, we shouldn’t use the website as a source of meshes or demos