Steps to reproduce the problem:
1. Generate a RSA key pair 
2. Store the private key into IndexedDB
Live Demo: https://demo.aralink.com/test/ipad.html 

What is the expected behavior?
The private key should be stored into the indexedDB

What went wrong?
objectStore.add(objectToSave); throws an unexpected error: DataCloneError: DomException 25

Did this work before? No 

Chrome version: 51.0.2704.104  Channel: stable
OS Version: 9.2
Flash Version: 

Works perfectly on Android, Windows and Mac. Also works in iOS-Safari. Just fail on iOS-Chrome