title: The target origin provided ('https://docs.google.com') does not match the recipient window's origin ('http://localhost:3000')
body: <p>Hi I am trying to access google drive from my react application, When I am signing in an iframe appears and and shows 'The developer key is invalid'. I am using a google drive library <code>react-google-picker</code>. </p>
  
  <p>I am getting a message like this <code>Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://docs.google.com') does not match the recipient window's origin ('http://localhost:3000')</code> in the browser console .</p>
  
  <p>I cannot understand why does it says <code>The target origin provided ('https://docs.google.com')</code>, I entered <code>http://localhost:3000</code> in the google developers console as Javascript origin url. Is it an issue of the iframe ? </p>