Rescue NoSuchWindow

target_locator

      def window(id)
        if block_given?
          begin
            original = @bridge.getCurrentWindowHandle
          rescue Selenium::WebDriver::Error::NoSuchWindowError
            original = nil
          end

          @bridge.switchToWindow id

          begin
            returned = yield
          ensure
            current_handles = @bridge.getWindowHandles

            if current_handles.size == 1
              original = current_handles.shift
            end

            @bridge.switchToWindow original unless original.nil?
            returned
          end
        else
          @bridge.switchToWindow id
        end
      end