当reCaptcha未加载时检测

您可以在请求captcha时传递回调函数

将此添加到url:

?onload=myfunction

例如:

 <script src="https://www.google.com/recaptcha/api.js?onload=loadedCallback&render=explicit"
        async defer>
    </script>

Js公司:

function loadedCallback(){
//Recaptcha its loaded
}