In https://github.com/sourcegraph/sourcegraph/pull/62955, I'm using Stripe's custom checkout flow, but after the user clicks "subscribe", I'm having a few issues:

• The current solution needs the Stripe CLI webhook forwarder to be running locally. This would be manageable, but it causes the next item:
• Stripe takes time to update everything in the background, and the current solution is not considering that properly: it redirects right when the subscription is created by Stripe, but can't detect whether the webhook finished running successfully. It may take time or even fail.
• We can't handle Stripe-hosted pages like 3D Secure confirmations this way. We need to let Stripe handle the redirects as it needs, but my experience has been that no redirect happens.