Here comes the issue with more info and slightly re-frased (new things in the bottom):
We are having issues with the LinkedIn social connection. Probably starting with Linkedins update to the version 9.1.234. Still the same issue on version 9.1.235. When a user choses “log in with Linkedin”, the user is sent in to the Linkedin mobile app (if they have it installed) and not to LinkedIn’s login form. This problem started when Linkedin updated their app. If the Linkedin mobile app is not installed on the iOS device, it works fine.
This is super crucial for our product because our users cant login and also the candidates applying for jobs cant do that from the Linkedin option.
We have a browser-based flow and have not done any changes in our product or our autentification service (Auth0) recently (and the problem only occurs when you have the Linkedin app installed on your phone).
When I dont have the Linkedin app installed on my phone, Im sent to Linkedins webb login. That works. But when the LInkedin app is installed Im sent to some form of app-login instead, then it does not work.
To reproduce the issue, simple visit this link from an iOS device with the LinkedIn mobile app installed:
Since the oauth parameters are valid, this link redirects to a url similar to
It is this link that opens the installed app instead of just continuing in the web browser and then the oauth dance stops abruptly since the app cannot communicate any authentication code back to the browser.
The bug could be caused either by previously not using the LinkedIn Login, Sign in | LinkedIn redirect or by the iOS app flags being changed to “own” the LinkedIn Login, Sign in | LinkedIn url path for deep-linking.