Just got through a duels run and was able to see my opponent’s secrets when they were first played before they were triggered. When they were moused over, they gave no indication of which secrets they were, but I already knew what they were. This happened with two matches against mages: objection- in the first match (was my 6th opponent) and Counterspell/Vengful Visage in the second match (10th opponent). I had HS Deck Tracker on, but I haven’t seen this before while playing. Perhaps I’m missing something, but may be worth a look.
Thanks!