Redirect Loop when activating Live Stripe Gateway, SSL works across site and with live off

I have Stripe as a payment option for users on my Pro site network that I was hoping to launch soon but ironing out some issues such as the Stripe live gateway. When in test mode all works fine but if I enable the live Stripe gateway I get a redirect loop on the subscription page

I'm using Cloudflare and have Strict SSL active which works perfectly across the site apart from the subscriptions page.

I will enable support access now.