I'd like to consume the Notion API from a mobile app that I am developing. When trying to set up the redirect URI, it doesn't seem possible to use a redirect URI that does not use the https scheme. Every time that I type in a custom scheme, it gets prefixed with https://. My desired implementation is to open the mobile web browser to perform the Notion authentication and OAuth authorization, and then have Notion redirect back to my application. I would like to use a custom scheme like myapp://notion/oauth. Is there a way to register a non-HTTPS redirect URI?