Added a fool proof to remove a trailing slash of a base directoryPath.

cmd/dwelling-files/main.go

@@ -43,6 +43,10 @@ func main() {
 	r.Handler(http.MethodGet, "/*filepath", Index)
 	r.ServeStatic("/assets/*filepath", web.Assets())
 
+	if (*directoryPath)[len(*directoryPath)-1] == '/' {
+		*directoryPath = (*directoryPath)[:len(*directoryPath)-1]
+	}
+
 	var fileServer http.Handler
 	if *enableFileHandler {
 		fileServer = http.FileServer(http.Dir(*directoryPath))