I've poured over 1.5 docs, and I'm pretty sure this should be possible. Is there a way to extract a header string from an http header and track that in a stick-table of type 'string'? If so, what is the syntax, where does the extraction take place?
Also, is there any way to concatenate two headers into one string value to track and store? If not, I can concatenate them upstream (close to client), but it'd be nice to keep the logic local to haproxy's config. The only examples I see for tcp-request track-sc1 are layer4 and below and yet the documentation alludes to contents being inspected as an option for any action (and not just accept/reject.)
