title: Error 'timed out (Capybara::TimeoutError)'
body: <p>When I run my feature using tag <code>@firebug</code>, my test runs and passes without a hitch, but when I remove the tag <code>@firebug</code> and run test headless I get error <code>timed out (Capybara::TimeoutError)</code>. Unfortunately I can't provide much more information. I'm not really expecting an answer, but any help to point me in the right direction would be much appreciated.</p>