Back button broken when trying to leave Premium upgrade page



I was browsing through the Cloud9 Pricing page, and when I clicked on “Upgrade now” under Premium, it brought me to the subscription page. Well, I was just looking for the details, and then wanted to go back to the pricing page, so I clicked the browser back button. Unfortunately, it didn’t go back. By spamming the back button, I occasionally saw the Loading modal, but unfortunately it was impossible to use the browser Back button to exit the page. This really isn’t too much of a problem, and won’t inconvenience anyone much, but it’s not a great user experience, and probably should be fixed.