https - iOS 9 ATS and Firebase REST

Question

I am building a simple iOS app that talks to Firebase using REST API.

Essentially, I am using NSURLSession.sharedSession().dataTaskWithRequest to connect to

https://myusername.firebaseio.com/Object.json

The app works fine in iOS 8. I am able to pass GET/PUT/PATCH/DELETE to manipulate my data. But since iOS 9 introduced ATS, I now have the https error:

NSURLSession/NSURLConnection HTTP load failed

(kCFStreamErrorDomainSSL, CFNetwork SSLHandshake failed)

I am fully aware of the workaround solution in Info.plist. However, I want to utilize the new safety feature in iOS 9.

I checked Firebase connection security (by clicking on Chrome's green lock button), and it seems to be compatible with Apple's ATS requirement.

Is my error because of the way I use NSURLSession? Or is it because of the Firebase security setup?

PS: I tested https://firebase.com and NSURLSession connects fine w/o error. My app is also simple enough that I don't require auth.

Thank you for your help.

Answer 1

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