iOS Associated Domains (Universal Links) with Wildcards not working

I added my findings to this thread: https://forums.developer.apple.com/thread/47315 In short, even in iOS 10, it appears that the wildcard setup requires that the apple-app-site-association file be served by the wildcard’s root. For instance, if you want to use *.domain.com, then the apple-app-site-association needs to be hosted at both, e.g., app1.domain.com and domain.com, else it won’t … Read more

Requests to /.well-known/apple-app-site-association

i believe iOS 9.3 introduced slightly different lookup logic around the apple-app-site-association file and the app handoff feature. “Handoff first searches for the file in the .well-known subdirectory (for example, https://example.com/.well-known/apple-app-site-association), falling back to the top-level domain if you don’t use the .well-known subdirectory.” see: https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/Handoff/AdoptingHandoff/AdoptingHandoff.html#//apple_ref/doc/uid/TP40014338-CH2-SW10

iOS Universal Links are not opening in-app

There are a few possible issues. Try pasting your domain into this link validator and make sure there are no issues: https://limitless-sierra-4673.herokuapp.com/ (credit to ShortStuffSushi — see repo) iOS logs an error message in the system logs if you don’t have TLS set up properly on the domain specified in your entitlements. It’s buried in … Read more