mobile phone not picking up "rear" facingMode

[amacwhirter]

Firstly - thanks so much for providing this package!

I'm having issues with the facingMode prop - when accessing the camera on a mobile phone (iPhone or Android) and in any browser (Safari and Chrome tested), it always picks up the front facing camera.

<QrReader onError={handleError} onScan={handleScan} facingMode={'rear'} style={{ width: '100%' }} />

Any direction to making sure only rear camera is selected onLoad would be very helpful! Thanks!