Custom parameters in callback method
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 Hi there! Is there any way in the login process to have custom parameters received in the defined callback method ?  As you can see, I am redirecting the user's browser to a static URL, but I'd like this URL to be dynamic, depending on custom parameters received when Google (the identity provider in this case) calls my CallbackmethodIs this possible ? 
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 To confirm, you are: - Sending the user to a page such as:
 https://local.fusionauth.io/oauth2/authorize?client_id=85a03867-dccf-4882-adde-1a79aeec50df&response_type=code&redirect_uri=https%3A%2F%2Fthird.com- The user will click login with Googleor be redirected automatically to Google (if using anidp_hint, for instance)
 In this case, FusionAuth will redirect to https://third.com(example only) but could just as easily redirect tohttps://fourth.comdepending on step one. In either case, all possible redirect URLs for your application need to be previously defined on the OAuth configuration for that application.Also, we do have a few github issues allowing a wildcard to be defined for a redirect URL. With more context, I might be able to provide additional feedback. Depending on context, deeplinking might also be something worth exploring Thanks, 
 Josh
