Use system browser

[raefa]

The following was emailed to me after trying to submit an app to the Dropbox gallery.

Your app currently processes the OAuth app authorization flow inside a web view, instead of the system browser. In order to support the Google Sign In flow when signing in to authorize the Dropbox app, your app will need to be updated to use the system browser, in order to comply with Google's policy: https://developers.googleblog.com/2016/08/modernizing-oauth-interactions-in-native-apps.html

Without using the system browser you are limited to 50 authentications/users.

[Astrovic]

Starting from version https://github.com/Astrovic/TiDropboxAPIv2/releases/tag/v6.0.0 the module uses the system browser. In addition, the OAauth 2 code flow has also been implemented, and a new TiDropbox.init() function. The TiDropbox.callMethod() method has also changed.
Full details at https://github.com/Astrovic/TiDropboxAPIv2#readme