1 · Session & environment
New-session parameters
Used only by the “+ Session” button to mint a new session. No effect when you paste an existing session id.
2 · Checkout options
Global options passed to createCheckout. Set these
before clicking “Create checkout”.
Express wallet options
Applied to the expressCheckout element. Change these then
re-mount (button in section 3) to see each variation.
3 · Payment elements
Express checkout (Apple Pay / Google Pay)
Card
Address · billing
Address · shipping
4 · Confirm payment (card path)
Wallet buttons invoke the system sheet on tap. Use this button for the
card path — it calls instance.confirm() and reports the outcome.