如何解决Uncaught ReferenceError：未定义firebase

Question

我正在尝试在我的Magento网站中集成Firebase分析。我在正文结束标记之前添加了以下代码

<!-- The core Firebase JS SDK is always required and must be listed first -->
<script src="https://www.gstatic.com/firebasejs/7.11.0/firebase-app.js"></script>

<!-- TODO: Add SDKs for Firebase products that you want to use
     https://firebase.google.com/docs/web/setup#available-libraries -->
<script src="https://www.gstatic.com/firebasejs/7.11.0/firebase-analytics.js"></script>


<script>
  // Your web app's Firebase configuration
  var firebaseConfig = {
  apiKey: "api-key",
  authDomain: "project-id.firebaseapp.com",
  databaseURL: "https://project-id.firebaseio.com",
  projectId: "project-id",
  storageBucket: "project-id.appspot.com",
  messagingSenderId: "sender-id",
  appId: "app-id",
  measurementId: "G-measurement-id",
  };
  // Initialize Firebase
  firebase.initializeApp(firebaseConfig);
  firebase.analytics();
</script>

添加此代码后，我在Google chrome控制台中收到此错误。

Uncaught ReferenceError: firebase is not defined

感谢您的任何帮助。

更新

Answer 1

我尝试运行此代码，并且Firebase凭据旁边还有其他错误。是第一个加载的脚本（包含全局设置Firebase的部分）。检查网络选项卡上的请求是否正常，在重新加载之前禁用缓存，并检查响应是否包含“ object” == self && self.self == type self && void 0！== self.firebase