entityMap|blocks|key|b9hoo|text|在尝试发送请求之前，您是否尝试过加载脚本？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|9iq8a|<script+src="https://www.google.com/recaptcha/api.js?onload=ReCaptchaCallbackV3&render=site_key"></script>
<script+type="text/javascript">
++++var+ReCaptchaCallbackV3+=+function()+{
++++++++grecaptcha.ready(function()+{
++++++++++++grecaptcha.execute("site_key").then(function(token)+{
++++++++++++++++console.log("v3+Token:+"+%2B+token);
++++++++++++});
++++++++});
++++};
</script>|code-block|syntax|javascript|6fksg^0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|I|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|J|9|@]|A|@]|B|$F|G]]|$2|H|4|-4|6|7|8|K|9|@]|A|@]|B|$]]]]

<p>Have you tried loading the script before trying to send the request?</p>

<pre><code>&lt;script src="https://www.google.com/recaptcha/api.js?onload=ReCaptchaCallbackV3&amp;render=site_key"&gt;&lt;/script&gt;
&lt;script type="text/javascript"&gt;
    var ReCaptchaCallbackV3 = function() {
        grecaptcha.ready(function() {
            grecaptcha.execute("site_key").then(function(token) {
                console.log("v3 Token: " + token);
            });
        });
    };
&lt;/script&gt;
</code></pre>


entityMap|blocks|key|b7p1i|text|在用户与Recaptcha+2交互之前，这也会发生在Recaptcha+2中。因此，我有一个submit按钮，它触发一个JS函数来检查recaptcha的值。为了解决没有客户端存在的问题，我做到了：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|b1sf|try+{
+++data["reCaptcha"]+=+grecaptcha.getResponse();
}+catch+(err)+{
+++data["reCaptcha"]+=+"";
}|code-block|syntax|javascript|3m6gm|然后，数据对象被发送到后端脚本，该脚本验证recaptcha。后端还会检查该字段是否为空。|75r2t^0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|K|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|L|9|@]|A|@]|B|$F|G]]|$2|H|4|I|6|7|8|M|9|@]|A|@]|B|$]]|$2|J|4|-4|6|7|8|N|9|@]|A|@]|B|$]]]]

<p>This also happens in Recaptcha 2 before user interacts with it. So, I have a submit button that triggers a JS function that checks the value of recaptcha. To solve the no client exists problem, I did:</p>

<pre><code>try {
   data["reCaptcha"] = grecaptcha.getResponse();
} catch (err) {
   data["reCaptcha"] = "";
}
</code></pre>

<p>The data object then gets sent to a back-end script that validates the recaptcha. The back-end also checks for the field being empty.  </p>


entityMap|blocks|key|agd29|text|我相信当加载reCaptcha+api.js，但是您的容器还没有出现在页面上(至少对于v2)时，就会出现这个错误。当我导航到页面而不是作为第一个页面加载它时，我在React应用程序中发生了这个错误。我没有使用render=explicit和全局名称空间onLoadCallback，而是能够通过手动呈现验证码元素来解析它。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3vu79|不创建<div+class="g-recaptcha"></div>，而是只给容器div一个id+(<div+id="recaptcha-container"></div>)，并在JS代码中呈现它(例如，在React应用程序的componentDidMount中)：|d2ita|grecaptcha.ready(function()+{
++grecaptcha.render("recaptcha-container",+{
++++"sitekey":+"your-site-key"
++});
});|code-block|syntax|javascript|6lvtc^0|2W|F|3I|E|0|3|V|1E|10|35|H|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|O|9|@$A|P|B|Q|C|D]|$A|R|B|S|C|D]]|E|@]|F|$]]|$2|G|4|H|6|7|8|T|9|@$A|U|B|V|C|D]|$A|W|B|X|C|D]|$A|Y|B|Z|C|D]]|E|@]|F|$]]|$2|I|4|J|6|K|8|10|9|@]|E|@]|F|$L|M]]|$2|N|4|-4|6|7|8|11|9|@]|E|@]|F|$]]]]

<p>I believe this error occurs when the reCaptcha api.js loads, but your container is not present on the page yet (at least for v2). I had this error occur in a React app when I navigated to the page rather than loading it as the first on. Instead of using <code>render=explicit</code> and using a global namespace <code>onLoadCallback</code>, I was able to resolve it by rendering the captcha element manually.</p>

<p>Instead of creating a <code>&lt;div class="g-recaptcha"&gt;&lt;/div&gt;</code>, give the container div an id only (<code>&lt;div id="recaptcha-container"&gt;&lt;/div&gt;</code>) and render  it in your JS code (e.g. in <code>componentDidMount</code> for a React app):</p>

<pre><code>grecaptcha.ready(function() {
  grecaptcha.render("recaptcha-container", {
    "sitekey": "your-site-key"
  });
});
</code></pre>


entityMap|blocks|key|ejpmh|text|当我在使用reCAPTCHA+v3时遇到这个问题，是因为我没有传递给它正确的站点密钥。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2nar4^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|D|9|@]|A|@]|B|$]]|$2|C|4|-4|6|7|8|E|9|@]|A|@]|B|$]]]]

<p>When I came across this problem with reCAPTCHA v3, it was because I didn't pass it the correct site key.</p>


entityMap|blocks|key|dh85c|text|我遇到这个问题是因为我在站点上没有任何活动的Recaptcha时调用了grecaptcha.reset();|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|9u5bs|grecaptcha.reset();
recaptcha__en.js:507+Uncaught+Error:+No+reCAPTCHA+clients+exist.
++++at+MX+(recaptcha__en.js:507)
++++at+Object.Zn+[as+reset]+(recaptcha__en.js:514)
++++at+<anonymous>:1:13|code-block|syntax|javascript|bqv5s^0|Z|J|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|M|9|@$A|N|B|O|C|D]]|E|@]|F|$]]|$2|G|4|H|6|I|8|P|9|@]|E|@]|F|$J|K]]|$2|L|4|-4|6|7|8|Q|9|@]|E|@]|F|$]]]]

<p>I had this problem because I was calling <code>grecaptcha.reset();</code> when there wasn't any Recaptcha active on the site</p>

<pre><code>grecaptcha.reset();
recaptcha__en.js:507 Uncaught Error: No reCAPTCHA clients exist.
    at MX (recaptcha__en.js:507)
    at Object.Zn [as reset] (recaptcha__en.js:514)
    at &lt;anonymous&gt;:1:13
</code></pre>


entityMap|blocks|key|1vqsv|text|我使用React，只是偶尔渲染我的验证码容器。修复了隐藏验证码按钮而不是渲染它的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|bcu7h^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|D|9|@]|A|@]|B|$]]|$2|C|4|-4|6|7|8|E|9|@]|A|@]|B|$]]]]

<p>I was using React and only rendering my captcha container sometimes. Fixed by hiding the captcha button instead of not rendering it.</p>


<p>I've integrated reCAPTCHA v3 in one of my forms. In onload, there's a token produced and google captcha logo in the bottom right corner. But when I submit the form, in console there is an error shown, "Error: No reCAPTCHA clients exist". Also, it seems, no data is fetched by "g-recaptcha-response" and $_POST["g-recaptcha-response"] remains empty.</p>

<p>Here is the sample code:</p>

<pre><code>&lt;script type="text/javascript"&gt;
    var ReCaptchaCallbackV3 = function() {
        grecaptcha.ready(function() {
            grecaptcha.execute("site_key").then(function(token) {
                console.log("v3 Token: " + token);
            });
        });
    };
&lt;/script&gt;

&lt;script src="https://www.google.com/recaptcha/api.js?onload=ReCaptchaCallbackV3&amp;render=site_key"&gt;&lt;/script&gt;
</code></pre>

<p>It doesn't produce any "g-recaptcha-response" when the form is submitted.</p>

<p>I don't know much about google reCaptcha. I've followed the documentation provided by them and used a site and a secret key in the proper way.</p>

<p>Can anybody please tell me where might be the problem and what is the possible solution?</p>


Error: No reCAPTCHA clients exist (reCAPTCHA v3)

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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 我已经在我的一个表单中集成了reCAPTCHA v3。在onload中，有一个生成的令牌和右下角的google captcha徽标。但是当我提交表单时，控制台中显示了一个错误，" error : No reCAPTCHA clients exist“。而且，看起来"g-recaptcha-response“没有获取任...

问错误:不存在reCAPTCHA客户端(reCAPTCHA v3)
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问错误:不存在reCAPTCHA客户端(reCAPTCHA v3)EN