EmbedCreatorManager is not defined

I have been trying to use Three.js on JS fiddle, and I keep running into issues with the EmbedCreatorManager.

In this example, I attempt to run a semi-simple scene. However, it endlessly loads and returns the error: Uncaught ReferenceError: EmbedCreatorManager is not defined

Hey, what is embedCreatorManager is it part of core THREE.js?

Not sure. I seem to get it once in a while when working with Three.js on JS fiddle. However, it seems to be off and on. Just checking my project and it now works.

It appears off and on with all of my projects.