Hello!
I have Cloudflare and W3 Total Cache plugin working together on my site but in General settings (of W3 plugin) at the Debug mode i cannnot uncheck the CDN and Reverse Proxy!
The result is that im getting a warning from Wordpress that “You’re running debug mode, it’s using Resources and not recommend to run continuously”
It seems to me that W3TC has detected you’re using CDN and Reverse Proxy and has auto-selected those. Since that’s a W3TC feature, I suggest you contact them for a solution.