I have got more than 4 google recaptcha on the same page. I managed to get them showing, but validating is not working.
$('#newsletter').on('submit', function(e) { 
      var response = grecaptcha.getResponse();
      if (response.length == 0) {
          e.preventDefault();
          alert("Incorrect captcha code. Please try again.");
          return false;
      } else {
          return true;
      } 
});<form action="" method="post" id="newsletter">
      <div id="sideRecaptcha" class="g-recaptcha"></div>
      <input type="submit" value="submit" />
</form>
 <script src="https://www.google.com/recaptcha/api.js?onload=reCaptchaCallback&render=explicit&hl=en" async defer></script>
 <script>
      var reCaptchaCallback = function() {
   var elements = document.getElementsByClassName('g-recaptcha');
   for (var i = 0; i < elements.length; i++) {
        var id = elements[i].getAttribute('id');
        var widgetId = grecaptcha.render(id, {
        'sitekey' : 'XXXXXXXX',
        theme' : 'light'
   });
        elements[i].setAttribute('cid', widgetId);
        grecaptcha.reset(widgetId);
   }
};
</script>grecaptcha.getResponse() always return empty. Any idea?
