primo commit

media/plg_captcha_recaptcha_invisible/js/recaptcha.js

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+/**
+ * @package     Joomla.JavaScript
+ * @copyright   (C) 2019 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license     GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+((window, document) => {
+
+  window.JoomlainitReCaptchaInvisible = () => {
+    const optionKeys = ['sitekey', 'badge', 'size', 'tabindex', 'callback', 'expired-callback', 'error-callback'];
+    document.querySelectorAll('.g-recaptcha').forEach(element => {
+      let options = {};
+      if (element.dataset) {
+        options = element.dataset;
+      } else {
+        optionKeys.forEach(key => {
+          const optionKeyFq = `data-${optionKeys[key]}`;
+          if (element.hasAttribute(optionKeyFq)) {
+            options[optionKeys[key]] = element.getAttribute(optionKeyFq);
+          }
+        });
+      }
+
+      // Set the widget id of the recaptcha item
+      element.setAttribute('data-recaptcha-widget-id', window.grecaptcha.render(element, options));
+
+      // Execute the invisible reCAPTCHA
+      window.grecaptcha.execute(element.getAttribute('data-recaptcha-widget-id'));
+    });
+  };
+})(window, document);