What to do in this 3-4 approach variation

Strategy and Tactics
1

In this game, black pinces a high 3-4 approach in a weird way: https://online-go.com/game/9389940 (move 7)

What would be the best response for white in that case? P17?

Thanks

2

According to josekipedia, o17 is a trick move and p17 is the correct response.