Firebase：无法发送OTP

Question

我有一个React组件，在 re-captcha 得到解决并触发回调后，下面会发送 OTP 。但是回调似乎没有触发。

import React from 'react';

import firebase from 'firebase/app';
import 'firebase/auth';

const firebaseConfig = {
  apiKey: 'xxx',
  authDomain: 'xxx',
  databaseURL: 'xxx',
  projectId: 'xxx',
  storageBucket: 'xxx',
  messagingSenderId: 'xxx',
  appId: 'xxx',
  measurementId: 'xxx',
};

firebase.initializeApp(firebaseConfig);

function App() {
  const handleSubmit = event => {
    event.preventDefault();

    window.reCaptchaVerifier = new firebase.auth.RecaptchaVerifier('sign-in-button', {
      size: 'invisible',
      callback: function (response) {
        // callback is not being fired
      },
    });
  };

  return (
    <form onSubmit={handleSubmit}>
      <input />
      <button id="sign-in-button">Submit</button>
    </form>
  );
}

export default App;

根据文档，将触发回调，我们可以在其中调用该函数以发送OTP。