Blackboard ssl-offload using x-forwarded-proto unsuccessful

Steven, I am going through the same issue that you presented here. Blackboard is saying that the issue is with the F5 and I say otherwise. Just so I'm certain that the iRule I have for X-Forward-Proto is correct for Blackboard, would you mind sharing what you have in place. They say they don't have a known good example. Here's what I have! ltm rule /Common/X-Forwarded-For { when HTTP_REQUEST { if {[HTTP::header exists X-Forwarded-For]}{ HTTP::header replace X-Forwarded-For "[HTTP::header X-Forwarded-For], [IP::client_addr]" } else { HTTP::header insert X-Forwarded-For [IP::client_addr] } } ltm rule /Common/X-Forwarded-Proto { when CLIENT_ACCEPTED { Check the requested port switch [TCP::local_port] { 80 { set proto http } 443 { set proto https } default { Drop the request drop } } }

My issue, was resolved when they correctly changed their bbconfig to this value bbconfig.frontend.trusted=\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\\\d{1,3}