iOS 9 data-rel back not working - known issue?

[Cem Yesil]

Hi,
I have an app that is going to be shipped to my client next week. He reported 
to me that the back button in the navigation bar (anchor with data-rel="back") 
is not working. I downloaded the XCode Beta with iOS 9 and it's true. It's 
working fine on other versions.Is that a known issue, or at least can you 
confirm that this is a cordova issue?
Thanks and kind regards,Cem Yesil