Firebase存储上载任务继续从不触发

const firebase = require('firebase/app');
require('firebase/storage');

// 初始化 Firebase 应用
const firebaseConfig = {
  apiKey: "YOUR_API_KEY",
  authDomain: "YOUR_AUTH_DOMAIN",
  projectId: "YOUR_PROJECT_ID",
  storageBucket: "YOUR_STORAGE_BUCKET",
  messagingSenderId: "YOUR_MESSAGING_SENDER_ID",
  appId: "YOUR_APP_ID"
};

firebase.initializeApp(firebaseConfig);
const storage = firebase.storage();

const file = ...; // 要上传的文件对象
const storageRef = storage.ref();
const uploadTask = storageRef.child('uploads/myfile.txt').put(file);

// 监听上传任务的状态变化
uploadTask.on('state_changed', 
  (snapshot) => {
    // 获取上传进度
    const progress = (snapshot.bytesTransferred / snapshot.totalBytes) * 100;
    console.log('Upload is ' + progress + '% done');
    switch (snapshot.state) {
      case firebase.storage.TaskState.PAUSED: // 或 'paused'
        console.log('Upload is paused');
        break;
      case firebase.storage.TaskState.RUNNING: // 或 'running'
        console.log('Upload is running');
        break;
    }
  }, 
  (error) => {
    // 处理上传错误
    switch (error.code) {
      case 'storage/unauthorized':
        console.error('User doesn\'t have permission to access the object');
        break;
      case 'storage/canceled':
        console.error('User canceled the upload');
        break;
      case 'storage/unknown':
        console.error('Unknown error occurred, inspect error.serverResponse');
        break;
    }
  }, 
  () => {
    // 上传完成后的处理
    uploadTask.snapshot.ref.getDownloadURL().then((downloadURL) => {
      console.log('File available at', downloadURL);
    });
  }
);

console.log('Starting upload task');
const uploadTask = storageRef.child('uploads/myfile.txt').put(file);
console.log('Upload task started');