http://l3tczdiiwoo63iwxty4lhs6p7eaxop5micbn7vbliydgv63x5zrrrfyd.onion/3.0.34/user-manual/actions-file.html
As a result request tags can be used to activate other
tagger actions, as long as these other taggers look for headers that haven't already be parsed. For example you could tag client requests which use the POST method, then use this
tag to activate another tagger that adds a tag if cookies are sent, and then use a block action based on the
cookie tag.