:middleware doesn't effect static files.

Middleware added to the :duct.core/handler :middleware vector doesn't seem to have any effect on static files. This is unfortunate, as gzip (added via the ring-gzip middleware) is hugely important for compiled cljs.

Middleware correctly effects routes using :duct.router/cascading. However, "resource" compojure routes added using :duct.router/cascading don't seem to do anything, so that's little help.

The best solution I've been able to find is to explicitely declare a :duct.server.http with a handler that wraps the :duct.core/handler in whatever middleware I desire. This, I feel, is kludgy and inelegant compared to declaring a :handler :middleware.

Start by tracing how :duct.core/handler applies the :middleware vector and how :duct.router/cascading handles resource routes. Reproduce the issue with a static file and ring-gzip, comparing it with a normal route. Done means declared middleware affects static files without requiring an explicit :duct.server.http handler wrapper.