Google SweetAlert 模态中的 reCaptcha window

Google reCaptcha within SweetAlert modal window

我正在开发一个需要在 SweetAlert 弹出框中进行 reCaptcha 验证的功能,但出现以下错误:

Uncaught Error: reCAPTCHA placeholder element must be an element or id

我一直在调查导致此错误的原因,我注意到这是因为当它尝试生成 reCaptcha 元素时该元素尚未加载。

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>

我正在尝试将 genRecaptcha 函数与 onload 触发器一起使用,但似乎无法获取元素。

有什么方法可以在弹框加载完成后执行该功能吗?还是我哪里做错了?

使用 jquery 中的 $(element).ready 解决问题,而不是使用 .onload

下面提供的代码片段将无法正常运行,因为 recaptcha 站点密钥对该站点无效

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>

UPD:这是现场演示:https://sweetalert2.github.io/recipe-gallery/recaptcha.html


这是 SweetAlert2 的解决方案 - SweetAlert 的支持分支:

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>