After updating payment details the stripe popup goes away but there's no confirmation of success

There's also a spinner that remains on the page.
The stripe invoice number is 2968-4784 if it helps with checking logs.

My devtools has no errors except mixpanel stuff being blocked by my uBlock Origin, and this was on Chrome 58.0.3029.110 on Linux.

Start by reproducing the payment-details update flow in the reported Chrome/Linux environment and inspect the request and logs using invoice 2968-4784. Done means the Stripe popup closes only after a successful update, a clear success confirmation appears, and the spinner no longer remains indefinitely.

Written by the indexing model from the issue text.