Thank you, Dismounted! That was a simple enough mistake on my part.
In regards to the no-cache headers, these are not effective for my purposes. I use three different types of content management systems and some global templates go above all of them. I need to ensure that when I update the template, each client will download a fresh copy. The rest of the time, I want clients to use the cached copy. The board slows down dramatically with no-cache headers on and it's a waste of a lot of bandwidth.
I highly recommend reading about this really
clever and easy-to-implement versioning system. For those of us with environments that don't readily lend themselves to versioning, it makes it easy and automatic. What more could you ask for?