Making the same squares better

Today I've been working on completing the updates to allow the backend to handle the location of target regions.  It's interesting trying to determine the best system for all of the moving parts to communicate about this information consistently and make sure everything has all the information it needs.  In the end things will still look very similar but will allow us to make important changes much more easily for the experiment.  Unfortunately I am having a problem with the javascript that is contacting the server.  I am getting a 404 response code, but the same url when sent through my browser returns the expected data.