middleware stacking bug fix

resource.go

@@ -34,19 +34,10 @@ func (m *Mux) Resource(pattern string, fn func(res *Resource), mw ...func(http.H
 		panic("mux: Resource() requires callback")
 	}
 
-	// Copy root middlewares.
-	mws := make([]func(http.Handler) http.Handler, len(m.middlewares)+len(mw))
-	copy(mws, m.middlewares)
-
-	// Append inline middlewares.
-	if len(mw) > 0 {
-		mws = append(mws, mw...)
-	}
-
 	fn(&Resource{
 		mux:         m.mux,
 		pattern:     pattern,
-		middlewares: mws,
+		middlewares: copyMW(m.middlewares, mw),
 		routes:      m.routes,
 	})
 }
@@ -130,7 +121,7 @@ func (res *Resource) handlerFunc(method, pattern string, h http.HandlerFunc) {
 	}
 
 	path := fmt.Sprintf("%s %s", method, pattern)
-	res.mux.Handle(path, stack(res.middlewares, h))
+	res.mux.Handle(path, stack(h, res.middlewares))
 }
 
 // Use will register middleware(s) on Router stack.