I've been following the documentation listed here:Lightning/Visualforce Documenation and seeing different results between my developer org and my sandbox environment.
When constructing the example in the documentation and loading the visualforce page, the developer org renders the referenced component.
The sandbox version results in the following error in the console:
Failed to load resource: the server responded with a status of 404 (Not Found)"
I've referenced the required lightning.out.js in both examples. Is there a permission or missing dependency or something in my sandbox that might cause this result?