Google Recaptcha在SweetAlert模式窗口中

Question

我正在研究一个需要在sweetalert弹出框中进行recaptcha验证的函数，但是我会收到以下错误：

未被发现的错误：recaptcha占位符元素必须是元素或ID

我一直在研究导致此错误的原因，我注意到这是因为该元素在尝试生成recaptcha元素时尚未加载。

function confirmBox() {
    var div = document.createElement('div');
    div.id = 'recaptcha';
    div.onload = genRecaptcha();
    swal({
        title: "Are you sure?",
        content: div,
        icon: "warning",
        buttons: true,
        dangerMode: true,
    })
}
function genRecaptcha() {
    console.log($('#recaptcha').attr('id'));
    grecaptcha.render('recaptcha', {
        'sitekey': '6Le2ZFUUAAAAAEV4IM_5weEnXg4gVplan2Atgiaj'
    });
}
$('#btn1').click(confirmBox);

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://unpkg.com/sweetalert/dist/sweetalert.min.js"></script>
<script src="https://www.google.com/recaptcha/api.js"></script>
<button id="btn1">Submit</button>

我试图用onload触发器将genRecaptcha函数放置，但似乎无法获取元素。

有什么方法可以在弹出框满载后执行该功能？还是我在这里做错了什么？

Answer 1

upd ：这是实时演示：https：//sweetalert2.github.io/recipe-gallery/recaptcha.html

---

这是SweetAlert2的解决方案 - sweetAlert的支撑叉：

function showSweetAlertRecaptcha() {
  Swal.fire({
    title: 'SweetAlert2 + Recaptcha',
    html: '<div id="recaptcha"></div>',
    willOpen: function() {
      grecaptcha.render('recaptcha', {
        'sitekey': '6LdvplUUAAAAAK_Y5M_wR7s-UWuiSEdVrv8K-tCq'
      });
    }, 
    preConfirm: function () {
      if (grecaptcha.getResponse().length === 0) {
        Swal.showValidationMessage(`Please verify that you're not a robot`)
      }
    }
  })
}

#recaptcha > div {
  width: auto !important;
  margin-bottom: .5em;
}

<script src="https://www.google.com/recaptcha/api.js?onload=showSweetAlertRecaptcha"></script>
<script src="https://cdn.jsdelivr.net/npm/sweetalert2@11"></script>

Answer 2

问题通过使用jQuery的$(element).ready而不是使用.onload

来解决问题

下面提供的代码段无法正常运行，因为Recaptcha站点密钥对此网站无效

function confirmBox() {
    var div = document.createElement('div');
    div.id = 'recaptcha';
    $('#recaptcha').ready(function () {
        console.log($('#recaptcha').attr('id'));
        grecaptcha.render('recaptcha', {
            'sitekey': '6Le2ZFUUAAAAAEV4IM_5weEnXg4gVplan2Atgiaj'
        });
    })
    swal({
        title: "Are you sure?",
        content: div,
        icon: "warning",
        buttons: true,
        dangerMode: true,
    })
}
$('#btn1').click(confirmBox);

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://unpkg.com/sweetalert/dist/sweetalert.min.js"></script>
<script src="https://www.google.com/recaptcha/api.js"></script>
<button id="btn1">Submit</button>