If your AJAX call causes the DOM to change, Capybara will wait for it if you do
page.should have_selector?("some selector")
Capybara, ( Capybara.default_wait_time) have_selector? , .
AJAX DOM, Capybara. , , AJAX Javascript - Capybara, . AJAX ( , ..). Capybara , .
Capybara 1 Capybara wait_until . wait_until Capybara 2. wait_until " 1" Rspec/Capybara ?