Failure route not handled

[nbrustein]

I am using 'omniauth' (which I believe is the default) as my omniauth prefix:

DeviseTokenAuth.setup do |config|
   config.omniauth_prefix = "/omniauth"
end

My routes are setup at api/auth:

mount_devise_token_auth_for 'User', at: 'api/auth', controllers: {
  ...
}

If a user tries to login with facebook, but then hits "Cancel" on the screen that says "... wants access to your profile", then I get the following error:

ActionController::RoutingError: No route matches [GET] "/omniauth/failure"

Running rake routes, I can see that api/auth/failure is setup and points at the omniauth_failure action , but '/omniauth/failure' is not set up

api_auth_failure GET        /api/auth/failure(.:format)                             devise_token_auth/omniauth_callbacks#omniauth_failure

Digging into the omniauth gem, I find this code in omniauth-1.2.2/lib/omniauth/failure_endpoint.rb:

def call
  raise_out! if OmniAuth.config.failure_raise_out_environments.include?(ENV['RACK_ENV'].to_s)
  redirect_to_failure
end

...

def redirect_to_failure
  message_key = env['omniauth.error.type']
  new_path = "#{env['SCRIPT_NAME']}#{OmniAuth.config.path_prefix}/failure?message=#{message_key}#{origin_query_param}#{strategy_name_query_param}"
  Rack::Response.new(['302 Moved'], 302, 'Location' => new_path).finish
end

So it looks like omniauth is generating that /omniauth/failure path based on the value of the omniauth_prefix, but devise_token_auth is not setting that path up.

[booleanbetrayal]

Should be fixed via 2cac1ef