Hey,
I've tried everything and I'm stuck. I wanted to test passkeys with the shiny example app. I did everything as it should be, universal links are actually working. But not the webcredential part. My website is philippmheck.com look it up, its nothing on there yet :D. I also did the webcredential with ?mode=developer. Oh and I tested it with the https://branch.io/resources/aasa-validator/, it says everything is fine.
Regards Philipp Heck
On the iOS device you're testing with, make sure you've gone to Settings > Developer and turned on Associated Domains Development. If you're still having issues, you may want to check out What's new in the Universal Links which has some additional debugging tips. If after all of that you still can't get it working, please file the issue through Feedback Assistant so that we can take a look :)
So apparently the problem was the ?mode=developer... I enabled it on the device and it got the file, but it couldn't find the webside, because it was looking for philippmheck.com?mode=developer. I saw this, when testing with another app, where it wanted to save my password under philippmheck.com?mode=developer and not philippmheck.com, and couldn't find it in the keychain, because it was saved under philippmheck.com and not philippmheck.com?mode=developer. When I removed this from my entitlements and behind the webcredentials, it worked. But behind applinks, like I said before, it worked. So I don't think, it was my fault and you should still look into it.
