Error trying to add Ngrok URL to Dropbox for creating OAuth Integration with XD

Hi there,

I’m following the tutorial for integrating XD with Dropbox: https://www.adobe.io/xd/uxp/develop/tutorials/how-to-integrate-with-OAuth/

In the Redirect URIs, I tried to add my own ngrok URL but am getting this error:

Non-local OAuth 2 redirect URIs may not start with “http:” or “javascript:”

I found this suggestion on StackOverflow on how to solve it but it is a completely different environment so I’m not sure what to do: php - Dropbox App redirect_url in Vagrant - Non-local OAuth 2 redirect URIs may not start with "http:" or "javascript:" - Stack Overflow

Am I supposed to set up my own SSL Server certificate on my mac? Create self-signed certificates in Keychain Access on Mac - Apple Support

I’m very confused about what to do next and any guidance will be appreciated! Thank you!