From the Dockerfile:
cat ad-hosts.txt | grep '^0.0.0.0 '| awk '{ print $2; }' | grep -v '0.0.0.0' | jq --raw-input --slurp 'split("\n")' > /app/ad-hosts.json
This command incorrectly omits the domains 0.0.0.0.hpyrdr.com and 0.0.0.0.creative.hpyrdr.com, which are both listed in the StevenBlack adblock list but are filtered out by the grep -v '0.0.0.0' command.
A corrected snippet is:
cat ad-hosts.txt | grep '^0\.0\.0\.0 ' | awk '{ print $2; }' | grep -v '0\.0\.0\.0\( \|$\)' | jq --raw-input --slurp 'split("\n")' > /app/ad-hosts.json