Perfection
In Every
Detail

1. Sign up at cloudflare.com/workers
2. Create a Worker → paste the worker code (download from your project files: stripe-worker.js)
3. Settings → Variables → add STRIPE_SECRET_KEY (your sk_live_… key) as an encrypted variable
4. Variables → add ALLOWED_ORIGIN = your website URL (e.g. https://yourdomain.com)
5. Deploy. Copy the Worker URL into Checkout Endpoint URL above.

1. Open your existing Zap (the one already sending you admin notifications)
2. Click the + button below your last action to add a new step
3. Pick Email by Zapier → Send Outbound Email (or Gmail / Outlook for nicer formatting)
4. Configure the fields:
   • To: map the customer_email field from the trigger
   • Subject: map confirmation_subject
   • Body: map confirmation_body
   • From Name: map confirmation_from_name
   • Reply To: map confirmation_reply_to
5. (Optional, recommended) Add a Filter by Zapier step before this email action with the rule "send_confirmation equals 1" — so customer emails only go out when you have the toggle above turned on.
6. Re-publish your Zap. Test it with the "Send Test Email" button above.

The confirmation email body is rendered with the placeholders filled in on our side — Zapier just sees the final text. So you don't need to map individual fields like {customer_name} in Zapier; just map confirmation_body and you're done.