It works for me. This is what I get with and without NF when I use your rules:
$ curl -I https://192.168.43.101/
HTTP/1.1 200 OK
Date: Thu, 02 Aug 2018 17:56:55 GMT
Server: Apache/2.4.25 (Debian)
Link: <https://192.168.43.101/wp-json/>; rel="https://api.w.org/"
X-XSS-Protection: 1; mode=block
Cache-Control: max-age=2592000
Expires: Sat, 01 Sep 2018 17:56:55 GMT
Content-Type: text/html; charset=UTF-8
Make sure to use a command line tool like curl
or, if you test from a browser, either delete your cookies or restart your browser because as a WordPress admin, you still have a PHP session cookie (which was used when your were logged in) and that will fail the test.