title: Rspec Request Spec, fails on form submit
body: <p>I've got a simple scheduling application. I've got a request spec set up to run through the flow of adding a new workout to the schedule, and the form appears to hang on submit and the script bails after a few seconds. Running through it manually works fine, and my controller and model specs are all passing without complaint.</p>
  
  <p>The only funky thing is I'm using execute_script to interact with the jquery datepicker, which seems to be working okay. Watching the execution shows that no error is happening, it's just hangs waiting for 127.0.0.1 to respond which doesn't seem to happen.</p>
  
  <pre><code>describe "Workouts" do
    describe 'Create Workouts', js: true do
      it 'Creates a new workout and displays the workout\'s page'  do
        visit workouts_path
        expect {
          click_link "New Workout"
          fill_in 'workout_name', with: 'Workout!'
          fill_in '', with: '05/01/2012'
          page.execute_script %Q{ $('#workout_show_date').trigger("focus") } 
          page.execute_script %Q{ $("a.ui-state-default:contains('15')").trigger("click") }
          select('6', from: 'workout_time_4i')
          select('15', from: 'workout_time_5i')
          click_button 'Create Workout'
        }.to change(Workout,:count).by(1)
      end
    end
  end
  </code></pre>