I am using the OAuth flow to let users claim rewards on my web site. I am sending users to https://www.patreon.com/oauth2/authorize?[query] and they are correctly brought to the authorization page.
However, when clicking the “Allow” button, it does not work. I can see the form is trying to submit to an invalid URL:
[form action=“https://https://www.patreon.com/api/oauth2/authorize” method=“POST”]
I tried testing in both Firefox and Chrome. In fact, I even ran into this bug myself just now, when signing into the Patreon Developers site, using my Patreon account.