Rails: Heroku with Omniauth and Facebook

Rails: Heroku with Omniauth and Facebook

I am working on an app that allows you to authenticate with Facebook to
signup and log into the app. For some reason when working with multiple
dynos, it appears that session management isn't carried over.
I can watch my logs log the user in, but when the user is redirected, the
app logs the user out for some reason
Here is my AuthorizationsController:
class AuthorizationsController < ApplicationController
skip_before_filter :redirect_to_signed_in_path, :prepare_for_mobile,
:redirect_to_https, :force_www!
def create
authentication =
Authorization.find_by_provider_and_uid(auth['provider'], auth['uid'])
if authentication
flash[:notice] = "Signed In Successfully"
sign_in authentication.user, event: :authentication
redirect_to root_path
elsif user_signed_in?
current_user.apply_omniauth(auth)
if current_user.save
current_user.update_attribute(:"allow_#{auth['provider']}_sync",
true)
PullSocialActionsWorker.perform_async(current_user.id,
auth["provider"])
redirect_to edit_social_profile_path, flash: { error:
"#{auth["provider"]} Integration is processing" }
else
redirect_to edit_social_profile_path, flash: { error: "An error
has occurred. Please try again." }
end
else
password = Devise.friendly_token[0,20]
athlete = Athlete.new(email: generate_auth_email(params[:provider]),
password: password, password_confirmation: password )
athlete.apply_omniauth(auth)
begin
athlete.subscriptions.build(trial_expiry: DateTime.now + 30,
active: true, account_type_id: AccountType.free.id)
if athlete.save(validate: false)
sign_in athlete, event: :authentication
redirect_to root_path, notice: "Account created and signed in
successfully"
else
redirect_to root_path, flash: { error: "An error has occurred.
Please try again." }
end
rescue ActiveRecord::RecordNotUnique
redirect_to root_path, flash: { error: "The email address you are
trying to connect already exists. Perhaps you
#{ActionController::Base.helpers.link_to "Forgot Your Password?",
new_user_password_path}".html_safe }
end
end
end
def failure
redirect_to root_url, notice: "An Error has occurred. Please try again!"
end
private
def auth
request.env["omniauth.auth"]
end
def generate_auth_email(provider)
if provider == "twitter"
"#{auth.uid}@twitter.com"
else
auth.info.try(:email)
end
end
end
Gemfile:
gem 'omniauth'
gem 'omniauth-facebook', '1.4.0'
I am also using Memcache/Dalli for caching...
gem 'memcachier'
gem 'dalli'
Anyone else run into this issue before?