Render non-HTML content when reply emits finished

spec/driver_spec.rb

@@ -203,7 +203,6 @@ describe Capybara::Webkit::Driver do
 
   context "css app" do
     let(:driver) do
-      pending 'this spec is hanging the server'
       driver_for_app do
         get "/" do
           headers "Content-Type" => "text/css"

src/UnsupportedContentHandler.cpp

@@ -21,5 +21,6 @@ void UnsupportedContentHandler::waitForReplyToFinish() {
 }
 
 void UnsupportedContentHandler::replyFinished() {
+  renderNonHtmlContent();
   connect(m_page, SIGNAL(loadFinished(bool)), m_page, SLOT(loadFinished(bool)));
 }