Serve a directory of files via new_app(). If index.html exists under the
directory, it is shown; otherwise a directory listing is shown. This is
similar to servr::httd() and Python's http.server module.
Serve a directory of files via new_app(). If index.html exists under the
directory, it is shown; otherwise a directory listing is shown. This is
similar to servr::httd() and Python's http.server module.