oooooh I think I figured it out
I guess I need to find a page not using HTTPS
Block Page is Not Displayed
If your browser/the website is using HTTPS/SSL, the browser will not be forwarded to the block page. Due to the encrypted nature of SSL requests, the MX cannot decrypt and redirect HTTPS traffic. Instead, the MX will force the request to timeout (an example of which can bee seen in Fig. 3, below).