I had this setup on my test system a while ago and I do not seem to remember having to do anything different than to install the FE extensions. These are essentially just proxy servers anyway and all of the work is done on the BE so as long as there is the correct comms between both FE's and the BE's then there should be no issue.
I had this setup on my test system a while ago and I do not seem to remember having to do anything different than to install the FE extensions. These are essentially just proxy servers anyway and all of the work is done on the BE so as long as there is the correct comms between both FE's and the BE's then there should be no issue.