Content blocking stopped working

[Daniel_Eble]

It hasn’t been working well for me either.

Chrome Bypasses YouTube Application Blocking

I am aware of known issue 29679, “YouTube blocking may not work if YouTube traffic is using QUIC,” but I doubt that’s the full story. I install a policy for Chrome to disable both DNS over HTTP and QUIC. For good measure, I also block outbound UDP and a variety of other things in the B One. (Its DNS proxy is enabled.) I clear all site data out of the browser. I flush the macOS DNS cache with dscacheutil -flushcache. Then, I restart the browser, type “youtube.com”, the page loads, and I can…