Ruby on rails 3 针对Google进行身份验证时出现间歇性OmniAuth错误

当尝试使用Omniauth进行身份验证时，它在我的开发环境（Mac OSX Mavericks）中可以完美地工作，但在生产环境（Heroku）中大部分时间都失败。错误在“无效凭据”和“连接失败”之间有所不同。在所有情况下，我已经登录到我的谷歌帐户。在流程成功之前，我可能会在4到8次之间的任何地方出现一个或另一个错误

有人看到了吗？你能解释一下为什么会发生这种情况吗

Gem:oa_openid（0.3.2）

config/routes.rb：

...
resource :admin_session, only: %w(show create destroy)
match '/auth/googleapps/callback' => 'admin_sessions#create'
...

config/omniauth.rb：

require 'openid/store/filesystem'

Rails.application.config.middleware.use OmniAuth::Strategies::GoogleApps, 
    OpenID::Store::Filesystem.new('./tmp'), 
    name: 'googleapps', domain: 'booktrakr.com'

管理员会话控制器：

class AdminSessionsController < ApplicationController
  # GET /admin_sessions
  def show
    redirect_to "/auth/googleapps?origin=#{params[:origin] || request.fullpath}" and return unless is_admin?

    @session = authenticated_admin
  end

  # POST /admin_sessions
  def create
    authinfo = request.env['omniauth.auth']
    uid = authinfo['uid']

    unless uid =~ %r(^https?://(groundbreakingsoftware|booktrakr).com/openid)
      raise "Bad hacker, no cookie"
    end

    self.authenticated_admin = authinfo

    redirect_to request.env['omniauth.origin'], notice: 'Session was successfully created.'
  end

  # DELETE /admin_sessions
  def destroy
    self.authenticated_admin = nil

    redirect_to root_url
  end
end

class AdminSessionController

至少乍一看，切换到OAuth2（）似乎解决了问题。谢谢，@Ashitaka

不确定是否相关，但谷歌已经弃用OpenID登录。