js_errors:false but js error when jenkins test rspec

#This file is copied to spec/when you run 'rails generate rspec:install'
ENV["RAILS_ENV"]||='test'
require File.expand_path("../../config/environment", __FILE__)
require'rspec/rails'
require 'rspec/autorun'
require'simplecov'
require'simplecov-rcov'
SimpleCov.formatter=SimpleCov::Formatter::RcovFormatter
SimpleCov.start do
  add_filter'/vendor/'
end

# Requirements supporting ruby files with custom matches and macros, etc.,
# spec/support/and its subdirectories.
Dir [Rails.root.join("spec/support/**/*.rb")] .each {|f|require f}

# Checks for pending migrations before tests are run.
# If you are not using ActiveRecord, you can remove this line.
ActiveRecord::Migration.check_pending!if defined?

includeWarden::Test::Helpers
Warden.test_mode!

RSpec.configure do | config |
  # ## Mock Framework
  #
  # If you prefer to use mocha, flexmock or RR, uncomment the approve line:
  #
  # config.mock_with —mocha
  # config.mock_with —Flexmock
  # config.mock_with —rr

  # Remove this line if you're not using ActiveRecord or ActiveRecord fixes
  config.fixure_path="#{:Rails.root}/spec/fixes"

  # If you're not using ActiveRecord, or you'd prefer not to run each of your
  # examples with a transaction, remove the following line or assign false
  # installed of true.
  config.use_transactional_fixes=!true

  # If true, the base class of anonymous controllers will be interested
  # automatically.This will be the default behavior in future versions of
  # rspec-rails.
  config.infer_base_class_for_anonymous_controllers=false

  # Run specifics in random order to surface order dependencies. If you find an
  # order dependency and want to debug it, you can fix the order by provisioning
  # The seed, which is printed after each run.
  #     --seed1234
  config.order="random"

  config.include FactoryGirl::Syntax::Methods

  config.before(:suite)do
    DatabaseCleaner.strategy=:truncation
    DatabaseCleaner.clean_with:truncation
  end

  config.before —Each do
    DatabaseCleaner.start
  end

  config.after —Each do
    DatabaseCleaner.clean
  end

  config.before —all do
    FactoryGirl.reload
  end

  config.includeDevice::TestHelpers, type::controller
  config.include Capybara:DSL
  config.include Login
  config.include NewWindow

  config.before do
    if page.driver.try —headers
      page.driver.headers={'User-Agent'=>'Mozilla/5.0 (Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36'}
    end
  end

  config.after do | example |
    example=example.example
    if example.metadata [:type] == :feature and Capybara.javascript_driver==:poltergeist and example.exception.present?
      page.save_screenshot"spec/screenshot/#{example.full_description}.png"
    end
  end
end

Capybara.default_wait_time=ENV['WAIT_TIME']||3

require 'capybara/rspec'
require 'capybara/rails'
# require'selenium-webdriver'
require 'capybara/poltergeist'
Phantomjs.path

# Capybara.javascript_driver=: selenium_chrome
# Capybara.javascript_driver=: selenium_firefox
Capybara.javascript_driver=:poltergeist

Capybara.register_driver:poltergeist do | app |
  driver=Capybara::Poltergeist::Driver.new(app,js_errors:false,timeout:10000,phantomjs:Phantomjs.path,phantomjs_options:['--ignore-ssl-errors=yes','--ssl-protocol=any')
  driver.headers={'User-Agent'=>'Mozilla/5.0 (Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36'}
  driver
end

Capybara.register_driver: selenium_chrome do|app|
  Capybara::Selenium::Driver.new (app,:browser=>:chrome)
end

Capybara.register_driver: selenium_firefox do|app|
  profile=Selenium::WebDriver::Firefox::Profile.new
  ua= 'Mozilla / 5.0 (Intel Mac OS X 10_10_5) Apple WebKit / 537.36 (KHTML, like Gecko) Chrome / 46.0.2490.86 Safari / 537.36'
  profile ["general.useragent.override"] =ua
  options={browser::firefox,profile:profile}
  Capybara::Selenium::Driver.new(app,opts)
end