When you set in application/config/application.php the languages array eg( array('en','fr') ) the redirect_uri that passes through the url does not match the url that the oauth dialogue was first called. The result is failed authentication for oauth2.
When you set in application/config/application.php the languages array eg( array('en','fr') ) the redirect_uri that passes through the url does not match the url that the oauth dialogue was first called. The result is failed authentication for oauth2.