def _handle_other(self):
        """Handles static files requests."""
        res_filename = os.path.join(
            os.path.dirname(__file__), _STATIC_DIR, self.path[1:])
        with io.open(res_filename, 'rb') as res_file:
            content = res_file.read()
        _, extension = os.path.splitext(self.path)
        return content, 'text/%s' % extension[1:]
Handles static files requests.