Hi there,

I have been using omniauth in a Rails app for multiple models, currently adding a param on the authorization URL to known which class to create once redirected. Unfortunately the current implementation of callback_url in this gem ignores the query params. The original implementation of this method in the base OAuth strategy correctly adds this query string.

Would it be possible to change

        options[:redirect_uri] || (full_host + callback_path)

into

        options[:redirect_uri] || super

Thanks for considering!