Reverse proxy - transparency to client

"Is it safe to assume that www.topquartile.com/en-us/blog/topquartile is a valid url and the pool members in pool_www.topquartile.com-http are the ones responsible for www.topquartile.com?" Yes the URL is similar. This isnt the exact URL, but close. I do have it pointing at pool_www.topquartile.com-http (cloud server). I dont think this is going to work though. I think I need to reverse proxy it, and manipulate the header to somehow think the client is on www.topquartile.com/en-us/blog/topquartile, when in fact its on www.topquartile.com (only when going to the blog).