Tor does not ignore unknown managed proxy output
Tor marks a managed proxy as broken when it receives unknown output from it.
This is bad for forward compatibility. The 180 spec also wants managed proxies to ignore unknown output:
Tor MUST ignore lines with keywords that it doesn't recognize.
log_warn(LD_CONFIG, "Unknown line received by managed proxy. (%s)", line); err: mp->conf_state = PT_PROTO_BROKEN; log_warn(LD_CONFIG, "Managed proxy at '%s' failed the configuration protocol" " and will be destroyed.", mp->argv); }