Carry paid ?plan from signup into checkout

Shipped

June 10, 2026 at 4:53 AM UTC

Author

Kamo

Commit

246c0e2

When a member signup originates from a paid pricing CTA (?plan=pro|business), drop an apex-domain sp_checkout_plan cookie on completion. kamo-login consumes it after the user authenticates and routes them to /subscribe -> Stripe, surviving the register -> verify -> login hops.