**What is the correct format for a redirect URL when authenticating with OAuth2 and the Harvest API from an iOS application?**

[oauth.com](https://www.oauth.com/oauth2-servers/redirect-uris/redirect-uris-native-apps/) states that a redirect URL for a native application can look like `myapp://callback`. Problem is, Harvest doesn't accept such a redirect URL. It seems to require prefixing it with `http`/`https`, which causes problems when redirecting back to the iOS application at the end of the authentication flow. I don't seem to find anything relevant in the [Harvest API documentation](https://help.getharvest.com/api-v2/authentication-api/authentication/authentication/).

I have added a URL Type in Xcode where I set the `Identifier` value to `com.example.myapp` and the `URL Schemes` value to `MyApp`. No matter what redirect URL I specify (given the format mentioned above) in Harvest the authentication flow always complains that `Safari cannot open the page because the server cannot be found`. I am able to open the app manually with the `appname://` URL from the