title: Does in-app purchases work in offline mode?
body: <p>I suppose that it's not so common case when user's device is without internet connection. But let's imagine this situation:</p>
  
  <ul>
  <li>no wifi</li>
  <li>cellular data is off</li>
  </ul>
  
  <p>Does in-app purchases works in this circumstances ?</p>
  
  <p>Are there any error handling which covers this situations(check if there is a connection/if there is no connection- throw an error), when implementing in-app purchases?</p>