Selenium wait_for_ajax method

wait_for_ajax_method.rb

# timeout is in seconds
 def wait_for_ajax(timeout=x)
   time_limit, interval = (Time.now + timeout), 0.5
   loop do
     break if @driver.execute_script "return jQuery.active == 0"
     sleep interval
     raise "Wait for AJAX timed out after waiting for #{timeout} seconds" if Time.now > time_limit
   end
 end