iOS Universal Links not working via TestFlight

Question

I'm new to iOS and managed to implement the iOS Universal Links for an app following this.

I have created and uploaded the apple-app-site-association and configured/prepared the app to handle universal links.

It all works well and I can test it successfully when I build the app through xCode into a real device. However the universal links do not work when installing the app via TestFlight.

When installing the app via xCode I can see the HTTP request to the apple-app-site-association file in my web server. But when installing it via TestFlight doesn't seem to try to fetch the association file.

Does anyone knows if this is expected or how can get universal links working when deploying on TestFlight?

what value did you set for "path" in apple-app-site-association file? — Gema Megantara, Jun 29 '18 at 03:19
try adding "/" to the path, so it looks like this: `"paths": ["*", "/"]`, and re-install the app after changing the path, then test again. — Gema Megantara, Jun 29 '18 at 03:22
thanks @GemaMegantara, made the change but didn't make any difference. works when building on xCode but still not working via TestFlight — velval, Jun 29 '18 at 03:33
Hmm that's weird. Have you try the app with adhoc distribution using such as diawi? If on the adhoc is working, I think it's safe to saying that it'll work on the App Store version later. — Gema Megantara, Jun 29 '18 at 04:15
connect your device with mac and see device log, it's may contain useful information. — SPatel, Jun 29 '18 at 04:38
Thanks GemaMegantara will try diawi and see what happens. Hi @SPatel when connecting the device it works fine, problem is only when app is installed via TestFlight — velval, Jun 29 '18 at 04:41

score 10 · Answer 1 · answered Jan 02 '19 at 11:29

Make sure your Associated Domains are in both entitlement files: "Debug" and "Release". In my case all domains were listed in Entitlement-Debug.plist file but the Entitlement-Release.plist was empty.

After adding them manually to the 'Release' file - app installed via TestFlight started working with Universal Links.

score 0 · Answer 2 · answered Nov 18 '20 at 11:19

Distribution via Testflight will also not work, if you have protected test-Environments and use ?mode=developer to bypass Apple's CDN. Developer mode is only taken into account if the App is signed with a development profile.

Reference here: https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_developer_associated-domains

score 0 · Answer 3 · answered Jun 16 '22 at 20:17

0

I was facing the same issue. The fix was to use the same BRANCH_KEY for both Debug and Release mode.

answered Jun 16 '22 at 20:17

Rinki

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iOS Universal Links not working via TestFlight

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