title: Scan is already in progress issue with ionic V3 in iOS13
body: <p>When click barcode scanner at first time, scanner opening and i didn't scan anything. Instead, i Slide down the barcode scanner in iOS 13 device.When i try to launch the barcode scanner second time i am getting the error <strong>'Scan is already in progress'.</strong></p>
  <p>I am using hybrid mobile application with ionic Version 3 (supported platforms are android and iOS). But issue occur only on iOS.</p>
  <p>Please provide your solution to fix the problem.</p>
  <p>Thanks.</p>