Conley caught one of two targets for six yards during Sunday's 34-16 loss to the Lions.
The 27-year-old and rookie Collin Johnson each played 15 offensive snaps, though the rookie didn't receive a look from Gardner Minshew. DJ Chark, Laviska Shenault and Keelan Cole have clearly established themselves as Jacksonville's top three wideouts, leaving Conley and Johnson to fill depth roles while the trio remain healthy.