When using the back button on your keyboard to go back to the cart the "Checkout" button under the cart form is not working anymore. After a refresh of the browser the checkout button works again.
I've also checked if it's in your demo https://commerce.demo.centarro.io/ and there it is also a problem, so it's not something in my setup that is bugging here.
Active
2.36
Checkout
Also have this issue while using Firefox or Edge back buttons. Not an issue in Chrome.
Seems this is issue is also present in plain vanilla Drupal core forms: 🐛 Prevention of multiple submits blocks use of back navigation Active