Mobile redirect iRule :uri "/groupon" to m.site.com/19550

I don't think it will work in this situation.

why not?

e.g.

 config

[root@ve11a:Active:In Sync] config  tmsh list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    profiles {
        http { }
        tcp { }
    }
    rules {
        qux
    }
    source 0.0.0.0/0
    vs-index 9
}
[root@ve11a:Active:In Sync] config  tmsh list ltm rule qux
ltm rule qux {
    when HTTP_REQUEST {
  if { [class match -- [string tolower [HTTP::path]] starts_with redirect_class] } {
    HTTP::redirect "http://[class match -value [string tolower [HTTP::path]] starts_with redirect_class]"
  }
}
}
[root@ve11a:Active:In Sync] config  tmsh list ltm data-group internal redirect_class
ltm data-group internal redirect_class {
    records {
        /groupon {
            data m.site.com/1231
        }
        /hilton {
            data m.site.com/1233
        }
        /shoprunner {
            data m.site.com/1232
        }
    }
    type string
}

 test

[root@ve11a:Active:In Sync] config  curl -I http://site.com/groupon/something
HTTP/1.0 302 Found
Location: http://m.site.com/1231
Server: BigIP
Connection: Keep-Alive
Content-Length: 0

[root@ve11a:Active:In Sync] config  curl -I http://site.com/shoprunner/something
HTTP/1.0 302 Found
Location: http://m.site.com/1232
Server: BigIP
Connection: Keep-Alive
Content-Length: 0

[root@ve11a:Active:In Sync] config  curl -I http://site.com/hilton/something
HTTP/1.0 302 Found
Location: http://m.site.com/1233
Server: BigIP
Connection: Keep-Alive
Content-Length: 0