I managed to integrate deep/universal links into my web view application, however they only work if the links are opened in the browser or in an e-mail.
If the link is in i.e. Facebook Messenger, it doesn't. I guess because Messenger opens the site in an integrated browser, thus the event can't escape from Messenger to the OS level. But this is just a theory.
Is there a way to make deep links work with links i.e. in Messenger?
Universal links don't work for certain apps (like Facebook, etc..). For such cases, you should consider a webpage as a fallback.. Meaning, that when opening the universal link, show a basic page with a button that will lead the user to the app (via urlScheme) or to appstore (if the urlScheme opening fails).