Validate your apple-app-site-association file for Universal Links and passkey implementation on iOS.
The Apple App Site Association file establishes a secure association between your iOS app and your website. It's required for Universal Links, Handoff, and passkey implementation on Apple platforms.
Host this file at one of these locations:
Include the webcredentials section:
"webcredentials": {
"apps": ["TEAMID.com.example.app"]
}