Javascript trigger when using poltergiest/capybara outside of rails - ruby

Question

I'm using Capybara, rspec and poltergeist, outside of rails, to run some headless integrations tests. The scenario is that, there are 2 select fields. If I select a value in the first select field, the 2nd select field is populated based on the value of the first select field. If I run my spec using poltergeist in Mac OSX, the spec works. But in ubuntu, it fails, it seems that the 2nd select field is not populated. I also have js: true on my specs.
Here's my spec_helper.rb:
require 'capybara/poltergeist'
require 'capybara'
require 'capybara/rspec'
require 'pry'
require 'support/session_helper'
RSpec.configure do |config|
config.include Capybara::DSL
config.include Capybara::Poltergeist
config.include SessionHelper
Capybara.run_server = false
Capybara.default_driver = :poltergeist
Capybara.javascript_driver = :poltergeist
Capybara.app_host = "http://vps-staging.dropmysite.com"
options = { js_errors: false }
Capybara.register_driver :poltergeist do |app|
Capybara::Poltergeist::Driver.new(app, options)
end
config.expect_with :rspec do |expectations|
expectations.include_chain_clauses_in_custom_matcher_descriptions = true
end
config.mock_with :rspec do |mocks|
mocks.verify_partial_doubles = true
end
end
EDIT Adding failing spec
require 'spec_helper'
feature 'vps-staging', js: true do
background do
visit '/'
end
let(:timestamp) { Time.now.strftime('%Y-%m-%d_%H-%M-%S') }
feature 'create private server' do
background do
sign_in 'blahblah#blahblah.com'
end
it 'successfully creates server' do
find(:xpath, "//a[#href='/en/private_servers/new']").click
directory_field = all(".tagit-new")[0].find("input")
select 'Ubuntu', from: 'distribution'
select '15.04', from: 'version'
fill_in 'private_server_profile_name', with: "Auto Test #{timestamp}"
directory_field.set "/home"
click_button 'Save'
visit '/en/dashboard'
expect(page.text).to have_content "Auto Test #{timestamp}"
end
end
end
EDIT another thing I found out is that, this bug only happens on phantomjs version 1.9.8 and below. 2.0 works fine.

Answer 1

As Tom Walpole pointed out, updating poltergeist from 1.6.0 to 1.7.0 fixed most of my problem but I still need to tweak a bit to fully solve my problem. What I did is to create a js file to hold the polyfill and edit my spec_helper.rb and tell poltergeist to use the options, extensions and include the polyfill.js thus changing this code from
options = { js_errors: false }
Capybara.register_driver :poltergeist do |app|
Capybara::Poltergeist::Driver.new(app, options)
end
to
options = { js_errors: false, extensions: ["spec/support/polyfill.js"] }
Capybara.register_driver :poltergeist do |app|
Capybara::Poltergeist::Driver.new(app, options)
end