Rails Filter chain halted as :authenticate rendered or redirected 大概什么原因导致这个错误的。
当时错误日志如下，并且基本不能重现这个错误，
08:53:48 INFO: Started POST "/service_projects/null/admins" for 103.23.161.22 at 2015-10-21 08:53:48 +0000 08:53:48 INFO: Processing by ServiceProjectsController#create_admin as / 08:53:48 INFO: Parameters: {"email"=>"[email protected]", "admin"=>"02c328d2-2cd4-4835-a371-5a6f62049dd1", "projects"=>"5a96b9ff-ef3b-441a-a4e9-1143dc0813ce", "serviceAccountId"=>"c108d6ba-e98b-4ffc-9094-972e86b47186", "id"=>"null"} 08:53:48 WARN: Can't verify CSRF token authenticity 08:53:48 INFO: Filter chain halted as :authenticate rendered or redirected 08:53:48 INFO: Completed 401 Unauthorized in 2ms (Views: 0.2ms | ActiveRecord: 0.0ms)
CSRF 的问题，提交要带上 csrf token
http://guides.ruby-china.org/security.html#%E8%B7%A8%E7%AB%99%E8%AF%B7%E6%B1%82%E4%BC%AA%E9%80%A0