is the URL scheme support changed or broken on iOS app 5.7.0.1055? A few versions ago the following calls from a third party iOS app would successfully open the spotify app search page. Now if I try them the spotify app opens but a popup window shows:

"Couldn't open link, Spotify can't open this type of link on this device"

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"spotify://search:artist:John+coltrane"]];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"spotify://search:genre:Jazz"]];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"spotify://search:track:blue%20and%20green"]];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"spotify://search:track:blue+and+green"]];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"spotify://search:album:kind+of+blue"]];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"spotify://search:label:universal"]];

If it has changed could someone point me to the documentation!

Thanks