```ruby
class ApplicationController < ActionController::Base
  UNSTORED_LOCATIONS = ['/users/sign_up', '/users/sign_in', '/users/password', 'users/sign_out']

  before_filter :store_location

  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.
  protect_from_forgery with: :exception

  def store_location
    if !UNSTORED_LOCATIONS.include?(request.fullpath) && !request.xhr?
      session[:previous_url] = request.fullpath
    end
  end

  def after_sign_in_path_for(resource)
    session[:previous_url] || inbox_account_conversations_path(resource.accounts.first)
  end

  # private

  def authorize!(policy)
    policy.access? || raise(ActiveRecord::RecordNotFound)
  end

end
```

Add invitations path to blacklist stored paths
user
```ruby
class ApplicationController < ActionController::Base
  UNSTORED_LOCATIONS = ['/users/sign_up', '/users/sign_in', '/users/password', '/users/sign_out', '/users/invitation']

  before_filter :store_location

  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.
  protect_from_forgery with: :exception

  def store_location
    if !UNSTORED_LOCATIONS.include?(request.fullpath) && !request.xhr?
      session[:previous_url] = request.fullpath
    end
  end

  def after_sign_in_path_for(resource)
    session[:previous_url] || inbox_account_conversations_path(resource.accounts.first)
  end

  # private

  def authorize!(policy)
    policy.access? || raise(ActiveRecord::RecordNotFound)
  end

end
```
assistant