title: No permission to access this object error
body: <p>I am trying to upload files using firebase. The code works fine on devices with only internal storage but while trying on devices with external storage(SD card) it shows <code>User does not have permission to access this object. Code: -13021 HttpResult: 403</code> error.</p>
  
  <p>My manifest file contains following permissions</p>
  
  <pre><code>&lt;uses-permission android:name="android.permission.INTERNET" /&gt;
  &lt;uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /&gt;
  &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /&gt;
  &lt;uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /&gt;
  </code></pre>