The following URL opens on iOS 8.3 and lower, but it does not work and iOS 9
let instagramURL = NSURL(string: "instagram://app")
iOS 9 has made a small change to the handling of URL scheme. You must whitelist the url's that your app will call out to using the
LSApplicationQueriesSchemes key in your
Please see post here: http://awkwardhare.com/post/121196006730/quick-take-on-ios-9-url-scheme-changes
The main conclusion is that:
If you call the “canOpenURL” method on a URL that is not in your whitelist, it will return “NO”, even if there is an app installed that has registered to handle this scheme. A “This app is not allowed to query for scheme xxx” syslog entry will appear.
If you call the “openURL” method on a URL that is not in your whitelist, it will fail silently. A “This app is not allowed to query for scheme xxx” syslog entry will appear.
The author also speculates that this is a bug with the OS and Apple will fix this in a subsequent release.