From what I can tell, the repo doesn't contain any links to the `/welcome` URL at all. So I'm not sure exactly how and where it's supposed to be used.

I could be safe and allow `POST`s to `/welcome`, but the real fix would probably be to stop `POST`ing there in the first place.

Also, looking at the generated home controller there isn't a `design` method. I'm just going to remove that route completely.