Dear Bullshit Generator Who Has Replaced My Source of Truth In this World with Utter Shite (I am looking at you, Gemini)
tell me again what SSLVerifyClient on means, exactly. Motherfucker 
when asked to differentiate between "on" and "optional", suddenly "on" means "require".
Utter shite.
Here, when asked to differentiate between "on" and "require" I am confidently told that "on" is the same as "accept" or "optional".