facebook - oauthが本番環境でauth/facebookを起動しない

Question

FacebookとTwitterの両方を統合したRailsアプリを作成しましたが、開発ではすべて正常に機能していましたが、本番環境に移行した後（fbとTwitterの設定のURLを自分のサイトのURL subdomain.domain.comに変更しました）oauthがトリガーされるだけではありません。ユニコーンコーンのファイル名を指しており、無効なURIエラーが発生しています。以下のエラーを貼り付けました。どんな助けでも大歓迎です...

URI::InvalidURIError (the scheme http does not accept registry part: unicorn_txt_browser (or bad hostname?)):
  /usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/uri/generic.rb:213:in `initialize'
  /usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/uri/http.rb:84:in `initialize'
  /usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/uri/common.rb:214:in `new'
  /usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/uri/common.rb:214:in `parse'
  /usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/uri/common.rb:747:in `parse'
  omniauth (1.1.1) lib/omniauth/strategy.rb:404:in `full_host'
  omniauth-oauth2 (1.0.3) lib/omniauth/strategies/oauth2.rb:34:in `callback_url'
  omniauth-facebook (1.4.0) lib/omniauth/strategies/facebook.rb:106:in `callback_url'
  omniauth-oauth2 (1.0.3) lib/omniauth/strategies/oauth2.rb:46:in `request_phase'
  omniauth-facebook (1.4.0) lib/omniauth/strategies/facebook.rb:94:in `request_phase'
  omniauth (1.1.1) lib/omniauth/strategy.rb:207:in `request_call'
  omniauth (1.1.1) lib/omniauth/strategy.rb:174:in `call!'
  omniauth (1.1.1) lib/omniauth/strategy.rb:157:in `call'
  omniauth (1.1.1) lib/omniauth/builder.rb:48:in `call'
  actionpack (3.2.5) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
  rack (1.4.1) lib/rack/etag.rb:23:in `call'
  rack (1.4.1) lib/rack/conditionalget.rb:25:in `call'
  actionpack (3.2.5) lib/action_dispatch/middleware/head.rb:14:in `call'
  actionpack (3.2.5) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
  actionpack (3.2.5) lib/action_dispatch/middleware/flash.rb:238:in `call'