Caching errors

[John-Michael Glenn]

I wanted to try and add HTTP caching to my project and so I figured the Etag method should work for most endpoints, especially the more static ones. I noticed that the server doesn't seem to send the Etag in the response headers though, and when I attempted to use If-None-Match: * I would get a 304 regardless of the endpoint I sent it to, even /game/status