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rubycdp
Clicking a link which inserts a lazy loaded iframe times out
Hi,
I ran into an issue, when trying to insert a lazy loaded iframe into the page out of the viewport, i get a Ferrum::TimeoutError. Below is a boiled down test reproducing the issue. My theory is, that something waits for the page/network to be idle, but fails, as the request of that iframe is pending until scrolled into view. When the iframe is in view, the test is successful.
I feel like this should just work.
describe 'synchronization' do
it 'does insert a iframe' do
App.start_html = <<~HTML
<a href="#" onclick="
let iframe = document.createElement('iframe');
iframe.setAttribute('loading', 'lazy');
iframe.src = '/next';
document.body.append(iframe);
">label</a>
#{(1...500).map { |i| "<p>#{i}</p>" }.join}
HTML
visit '/start'
page.find('a').click
end
end
This fails with:
1) iframe does add an iframe with [loading=lazy]
Failure/Error: page.find('a').click
Ferrum::TimeoutError:
Timed out waiting for response. It's possible that this happened because something took a very long time (for example a page load was slow). If so, setting the :timeout option to a higher value might help.
# ./spec/features/synchronization_spec.rb:17:in `block (2 levels) in <top (required)>'
Other relevant files
app.rb
require 'sinatra'
require 'active_support/core_ext/class/attribute'
class App < Sinatra::Base
class_attribute :start_html, :start_script
delegate :start_html, :start_script, :reset, to: :class
get '/start' do
render_body(<<~HTML)
#{start_html}
<script>#{start_script}</script>
HTML
end
def self.reset
self.start_html = 'hi world'
self.start_script = 'console.log("loaded")'
end
private
def render_body(content)
<<~HTML
<html>
<head>
</head>
<body>
#{content}
</body>
</html>
HTML
end
end
spec_helper.rb
require 'byebug'
require 'capybara'
require 'capybara/rspec'
require "rspec/wait"
require 'active_support/dependencies/autoload'
require 'active_support/core_ext/numeric'
require 'base64'
require 'selenium-webdriver'
require "capybara/cuprite"
# Load all files in spec/support
Dir["#{__dir__}/support/**/*.rb"].each { |f| require f }
RSpec.configure do |config|
config.include Capybara::DSL
config.include Capybara::RSpecMatchers
config.before(:each) { App.reset }
config.wait_timeout = 5
config.wait_delay = 0.02
end
cuprite_options = {
window_size: [1280, 1024],
headless: !ENV['NO_HEADLESS'],
timeout: 1, # Keep the short timeout for now
}
Capybara.register_driver :chrome_cuprite do |app|
Capybara::Cuprite::Driver.new(app, **cuprite_options)
end
Capybara.default_driver = :chrome_cuprite
Capybara.configure do |config|
config.app = App
config.server_host = 'localhost'
config.default_max_wait_time = 1
end
Gemfile
# frozen_string_literal: true
source "https://rubygems.org"
gem 'activesupport', '~> 6.0'
gem "rake", "~> 13.0"
gem "rspec", "~> 3.0"
gem "rspec-wait", '~> 0.0.10'
gem 'sinatra'
gem 'thin'
gem 'puma'
gem 'byebug'
gem 'gemika', '>= 0.8.1'
gem 'capybara', '>= 3'
gem 'selenium-webdriver', '>= 4'
gem 'cuprite'
gem 'base64' # needed by selenium-webdriver (and potentially others)
gem 'bigdecimal' # needed by activesupport (and potentially others)
Gemfile.lock
GEM
remote: https://rubygems.org/
specs:
activesupport (6.1.7)
concurrent-ruby (~> 1.0, >= 1.0.2)
i18n (>= 1.6, < 2)
minitest (>= 5.1)
tzinfo (~> 2.0)
zeitwerk (~> 2.3)
addressable (2.8.5)
public_suffix (>= 2.0.2, < 6.0)
base64 (0.2.0)
bigdecimal (3.1.8)
byebug (11.1.3)
capybara (3.39.2)
addressable
matrix
mini_mime (>= 0.1.3)
nokogiri (~> 1.8)
rack (>= 1.6.0)
rack-test (>= 0.6.3)
regexp_parser (>= 1.5, < 3.0)
xpath (~> 3.2)
childprocess (4.1.0)
concurrent-ruby (1.1.10)
cuprite (0.17)
capybara (~> 3.0)
ferrum (~> 0.17.0)
daemons (1.4.1)
diff-lcs (1.5.1)
eventmachine (1.2.7)
ferrum (0.17.1)
addressable (~> 2.5)
base64 (~> 0.2)
concurrent-ruby (~> 1.1)
webrick (~> 1.7)
websocket-driver (~> 0.7)
gemika (0.8.1)
i18n (1.12.0)
concurrent-ruby (~> 1.0)
matrix (0.4.2)
mini_mime (1.1.5)
mini_portile2 (2.8.5)
minitest (5.16.3)
mustermann (3.0.0)
ruby2_keywords (~> 0.0.1)
nio4r (2.6.1)
nokogiri (1.15.5)
mini_portile2 (~> 2.8.2)
racc (~> 1.4)
public_suffix (5.0.4)
puma (6.4.0)
nio4r (~> 2.0)
racc (1.7.3)
rack (2.2.8)
rack-protection (3.1.0)
rack (~> 2.2, >= 2.2.4)
rack-test (2.1.0)
rack (>= 1.3)
rake (13.1.0)
regexp_parser (2.8.2)
rexml (3.2.5)
rspec (3.13.0)
rspec-core (~> 3.13.0)
rspec-expectations (~> 3.13.0)
rspec-mocks (~> 3.13.0)
rspec-core (3.13.0)
rspec-support (~> 3.13.0)
rspec-expectations (3.13.1)
diff-lcs (>= 1.2.0, < 2.0)
rspec-support (~> 3.13.0)
rspec-mocks (3.13.1)
diff-lcs (>= 1.2.0, < 2.0)
rspec-support (~> 3.13.0)
rspec-support (3.13.1)
rspec-wait (0.0.10)
rspec (>= 3.0)
ruby2_keywords (0.0.5)
rubyzip (2.3.2)
selenium-webdriver (4.1.0)
childprocess (>= 0.5, < 5.0)
rexml (~> 3.2, >= 3.2.5)
rubyzip (>= 1.2.2)
sinatra (3.1.0)
mustermann (~> 3.0)
rack (~> 2.2, >= 2.2.4)
rack-protection (= 3.1.0)
tilt (~> 2.0)
thin (1.8.2)
daemons (~> 1.0, >= 1.0.9)
eventmachine (~> 1.0, >= 1.0.4)
rack (>= 1, < 3)
tilt (2.3.0)
tzinfo (2.0.5)
concurrent-ruby (~> 1.0)
webrick (1.9.1)
websocket-driver (0.8.0)
base64
websocket-extensions (>= 0.1.0)
websocket-extensions (0.1.5)
xpath (3.2.0)
nokogiri (~> 1.8)
zeitwerk (2.6.0)
PLATFORMS
ruby
DEPENDENCIES
activesupport (~> 6.0)
base64
bigdecimal
byebug
capybara (>= 3)
cuprite
gemika (>= 0.8.1)
puma
rake (~> 13.0)
rspec (~> 3.0)
rspec-wait (~> 0.0.10)
selenium-webdriver (>= 4)
sinatra
thin
BUNDLED WITH
2.3.1
