我正在关注 Firebase文档，以便从网页调用位于与us-central1.
更准确地说，在网页中，我做了var functions = firebase.functions('europe-west1');但我收到以下错误并且没有从调用中得到结果：
uncaught exception: functions: Firebase: firebase.functions() takes either no argument or a Firebase App instance. (app/invalid-app-argument).
这是MCV代码：
云功能
const functions = require('firebase-functions');
exports.getName = functions
.region('europe-west1')
.https.onCall((data, context) => {
return { name: 'MyName' };
});
网页
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="https://www.gstatic.com/firebasejs/5.3.1/firebase-app.js"></script>
<script src="https://www.gstatic.com/firebasejs/5.3.1/firebase-functions.js"></script>
</head>
<body>
<script>
// Initialize Firebase
var config = {
apiKey: "xxxxxxxxxx",
authDomain: "xxxxxxxxxx",
databaseURL: "xxxxxxxxxx",
projectId: "xxxxxxxxxx",
storageBucket: "xxxxxxxxxx", …