rails on live stream seems to expires with error on server

[u007]

ive rescue_from right at the very top of application_controller,
and i'am still getting this error when my browser session expired after long inactivity.
it does not occur if i clear my browser cache.
the exception is handled properly if my browser cache is cleared by force.

rescue_from CanCan::AccessDenied do |exception|
    ....
end

#and this before action is below rescue:
before_action :invalidate_simultaneous_user_session, :unless => Proc.new {|c| c.controller_name == 'sessions' }
include ActionController::Live

error:

NoMethodError (undefined method `call' for nil:NilClass):
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_controller/metal/live.rb:67:in `call_on_error'
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_controller/metal/live.rb:137:in `rescue in block in process'
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_controller/metal/live.rb:146:in `block in process'



ArgumentError (uncaught throw :warden):
  /home/mysite/vendor/bundle/ruby/2.0.0/bundler/gems/devise-6d2992189cee/lib/devise/hooks/timeoutable.rb:21:in `throw'
  /home/mysite/vendor/bundle/ruby/2.0.0/bundler/gems/devise-6d2992189cee/lib/devise/hooks/timeoutable.rb:21:in `block in <top (required)>'
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/hooks.rb:14:in `call'
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/hooks.rb:14:in `block in _run_callbacks'
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/hooks.rb:9:in `each'
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/hooks.rb:9:in `_run_callbacks'
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/manager.rb:53:in `_run_callbacks'
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/proxy.rb:179:in `set_user'
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/proxy.rb:217:in `user'
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/proxy.rb:318:in `_perform_authentication'
  /home/mysite/vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/proxy.rb:104:in `authenticate'
  /home/mysite/vendor/bundle/ruby/2.0.0/bundler/gems/devise-6d2992189cee/lib/devise/controllers/helpers.rb:58:in `current_user'
  /home/mysite/app/controllers/application_controller.rb:97:in `invalidate_simultaneous_user_session'

[rafaelfranca]

Could you create an application reproducing this bug and publish on github to make easier to us debug?

[pivotalshiny]

Jamilbk has created a demo app:
https://github.com/jamilbk/devise_bug_demo

To see error

• clone repo
• run rake db:migrate
• bundle exec rails s and visit localhost:3000

Source (his comment on a closed Devise issue):
heartcombo/devise#2332

[rails-bot]

This issue has been automatically marked as stale because it has not been commented on for at least
three months.

The resources of the Rails team are limited, and so we are asking for your help.

If you can still reproduce this error on the 4-1-stable, 4-0-stable branches or on master,
please reply with all of the information you have about it in order to keep the issue open.

Thank you for all your contributions.

[u007]

hi,

really need this to be fixed,
when warden expires, the rescue on live application does not get caught
but error page came out instead...
its a critical bug

[rafaelfranca]

cc @tenderlove

[jamo]

I upgraded the sample app to rails/rails current version of rails, https://github.com/jamox/devise_bug_demo (one may need to change paths in Gemfile... to get it working locally.)

The error occurs still:

/Users/jamo/git/oss/warden/lib/warden/proxy.rb:128:in `throw'
/Users/jamo/git/oss/warden/lib/warden/proxy.rb:128:in `authenticate!'
/Users/jamo/git/oss/devise/lib/devise/controllers/helpers.rb:50:in `authenticate_user!'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:430:in `block in make_lambda'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:159:in `call'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:159:in `block in halting'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:230:in `call'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:230:in `block in halting'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:230:in `call'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:230:in `block in halting'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:165:in `call'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:165:in `block in halting'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:165:in `call'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:165:in `block in halting'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:165:in `call'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:165:in `block in halting'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:86:in `call'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/callbacks.rb:86:in `run_callbacks'
/Users/jamo/git/oss/rails/actionpack/lib/abstract_controller/callbacks.rb:21:in `process_action'
/Users/jamo/git/oss/rails/actionpack/lib/action_controller/metal/rescue.rb:29:in `process_action'
/Users/jamo/git/oss/rails/actionpack/lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/notifications.rb:159:in `block in instrument'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/Users/jamo/git/oss/rails/activesupport/lib/active_support/notifications.rb:159:in `instrument'
/Users/jamo/git/oss/rails/actionpack/lib/action_controller/metal/instrumentation.rb:30:in `process_action'
/Users/jamo/git/oss/rails/actionpack/lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
/Users/jamo/git/oss/rails/activerecord/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
/Users/jamo/git/oss/rails/actionpack/lib/abstract_controller/base.rb:137:in `process'
/Users/jamo/git/oss/rails/actionview/lib/action_view/rendering.rb:30:in `process'
/Users/jamo/git/oss/rails/actionpack/lib/action_controller/metal/live.rb:230:in `block in process'

Not sure if this is more feature than a bug - need to investigate further...

[rails-bot]

This issue has been automatically marked as stale because it has not been commented on for at least
three months.

The resources of the Rails team are limited, and so we are asking for your help.

If you can still reproduce this error on the 4-1-stable, 4-0-stable branches or on master,
please reply with all of the information you have about it in order to keep the issue open.

Thank you for all your contributions.

[tbcooney]

When warden expires, the error still occurs. I experience this with Action Cable as it is trying to fetch /cable.