recaptcha-nette-ajax.html

<script type="text/javascript">
(function (window, $) {
	window['grecaptchaInit'] = function () {
		$.nette.ext({
			init: function () {
				$('.g-recaptcha').each(function () {
					var recaptcha = $(this);

					if (recaptcha.children().length) { // already processed -> skip
						return ;
					}

					grecaptcha.render(recaptcha[0], {
						sitekey: recaptcha.attr('data-sitekey')
					});
				});
			},

			load: function () {
				grecaptcha.reset();
			}
		});

		$.nette.init();
	};
})(window, window.jQuery);
</script>

<script type="text/javascript" src="https://www.google.com/recaptcha/api.js?onload=grecaptchaInit&amp;render=explicit"></script>