[added] Parameter to use recaptchanet instead of google.com

README.md

@@ -69,10 +69,13 @@ Other properties can be used to customise the rendering.
 
 In order to translate the reCaptcha widget, you should create a global variable configuring the desired language. If you don't provide it, reCaptcha will pick up the user's interface language.
 
+If google.com is blocked, you can set useRecaptchaNet to `true` so that the component uses recaptcha.net instead.
+
 ```js
 window.recaptchaOptions = {
-  lang: 'fr'
-}
+  lang: 'fr',
+  useRecaptchaNet: true,
+};
 ```
 
 ## Component API

src/recaptcha-wrapper.js

@@ -2,10 +2,11 @@ import ReCAPTCHA from "./recaptcha";
 import makeAsyncScriptLoader from "react-async-script";
 
 const callbackName = "onloadcallback";
-const lang = typeof window !== "undefined" && (window.recaptchaOptions && window.recaptchaOptions.lang) ?
-  `&hl=${window.recaptchaOptions.lang}` :
-	"";
-const URL = `https://www.google.com/recaptcha/api.js?onload=${callbackName}&render=explicit${lang}`;
+const options = (typeof window !== "undefined" && window.recaptchaOptions) || {};
+
+const lang = options.lang ? `&hl=${options.lang}` : "";
+const hostname = options.useRecaptchaNet ? "recaptcha.net" : "www.google.com";
+const URL = `https://${hostname}/recaptcha/api.js?onload=${callbackName}&render=explicit${lang}`;
 const globalName = "grecaptcha";
 
 export default makeAsyncScriptLoader(ReCAPTCHA, URL, {