From 12569718d5c776630cae6dd06cf16ba79931c4be Mon Sep 17 00:00:00 2001
From: Marc Lennox <marc.lennox@gmail.com>
Date: Wed, 22 Apr 2015 15:01:19 -0400
Subject: [PATCH] Added missing authorize_params method to pass scope and team
 through to slack oauth.

---
 lib/omniauth/strategies/slack.rb | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/omniauth/strategies/slack.rb b/lib/omniauth/strategies/slack.rb
index ca75e8d..1e810f0 100644
--- a/lib/omniauth/strategies/slack.rb
+++ b/lib/omniauth/strategies/slack.rb
@@ -40,6 +40,16 @@ class Slack < OmniAuth::Strategies::OAuth2
         {:raw_info => raw_info, :user_info => user_info}
       end
 
+      def authorize_params
+        super.tap do |params|
+          %w[scope team].each do |v|
+            if request.params[v]
+              params[v.to_sym] = request.params[v]
+            end
+          end
+        end
+      end
+
       def user_info
         @user_info ||= access_token.get("/api/users.info?user=#{raw_info['user_id']}").parsed
       end