Figma Support Forum

iOS scheme as callback URL not allowed?

I’d like to incorporate Figma interactions in an iOS/macOS app.

My callback URL ( app://figmaAuth ) is rejected:
website must be a valid URL (example:

Apple’s ASWebAuthenticationSession framework captures the return callback and forwards it to an app as a universal link, hence the use of app://.

How can I comply with Figma’s requirements and provide a native secure iOS experience? Apologies for a newbie question.