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ViewsInvisible reCAPTCHA sending empty g-recaptcha-response with multiple forms
I am trying to use Google Invisible reCAPTCHA, but it is sending empty the g-recaptcha-response POST parameter when i have multiple forms in the same page. Here is my code:
Google JS
<script src="//google.com/recaptcha/api.js?hl=pt-BR&onload=captchaCallback&render=explicit" async defer></script>
Form 1
<form action="/site/Contact/send" id="form1">
<input type="text" name="nome" required>
<div class="g-recaptcha"
data-sitekey="xxxxxxxxxxxxxxxxxxxxxxxx"
data-callback="form1Callback"
data-size="invisible">
</div>
<button type="submit">Send</button>
</form>
Form 2
<form action="/site/Contact/send" id="form2">
<input type="text" name="nome" required>
<div class="g-recaptcha"
data-sitekey="xxxxxxxxxxxxxxxxxxxxxxxx"
data-callback="form2Callback"
data-size="invisible">
</div>
<button type="submit">Send</button>
</form>
My JS (Based on this answer]
$(document).ready(function() {
window.captchaCallback = function(){
$('.g-recaptcha').each(function(index, el) {
var attributes = {
'sitekey' : $(el).data('sitekey'),
'size' : $(el).data('size'),
'callback' : $(el).data('callback')
};
grecaptcha.render(el, attributes);
});
};
window.form1Callback = function(){
$('#form1').submit();
};
window.form2Callback = function(){
$('#form2').submit();
};
});
When i submit one of these forms the g-recaptcha-response parameter is sent empty, as below.
Can someone help me to put it to work, please?
2 answers
Answer question0
You will need to manually call grecaptcha.execute() to run recaptcha if you are rendering invisible recaptcha in a div element. Also if there are multiple forms with recaptcha, then the grecaptcha.execute() method needs to be called with a widget ID generated for each recaptcha when the grecaptcha.render() method is called.
$(document).ready(function() {
window.captchaCallback = function(){
$('.g-recaptcha').each(function(index, el) {
var attributes = {
'sitekey' : $(el).data('sitekey'),
'size' : $(el).data('size'),
'callback' : $(el).data('callback')
};
$(el).data('recaptcha-widget-id', grecaptcha.render(el, attributes));
});
};
window.form1Callback = function(){
$('#form1').data("recaptcha-verified", true).submit();
};
window.form2Callback = function(){
$('#form2').data("recaptcha-verified", true).submit();
};
$('#form1,#form2').on("submit", function(e){
var $form = $(this);
if ($form.data("recaptcha-verified")) return;
e.preventDefault();
grecaptcha.execute($form.find(".g-recaptcha").data("recaptcha-widget-id"));
});
});
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According to documentation and your code I could guess you are trying to use Programmatically invoke the challenge. from Google reCaptcha.
So in your JS-code you missed one statements:
grecaptcha.execute();
UPDATE Maybe I misunderstood you question, so check this:
render explicit onload Optional. Whether to render the widget explicitly. Defaults to onload, which will render the widget in the first g-recaptcha tag it finds.
As I understood it's just found first marked tag and that causes you problem?