There are two issues about Mod-security-rules.

1.Rules of modsecurity_crs_20_protocol_violations.conf and modsecurity_crs_21_protocol_anomalies.conf,modsecurity_crs_60_correlation.conf,those three rules will block google chrome,Internet explorer,firefox to download PDF files when those three rules are enabled.Can you fix this issue to download PDF files when rules are enabled?

2.Some automatic robots such as telport pro,httrack can't be blocked by Mod-security-rules.Is there any rule can stop that kind of rude site copier robots?Or you can create rule to stop it?

best regards.