javascript - 用于 firebase 的 Cloud Functions 返回响应 500

Question

这是我正在调用的函数

'use strict';

const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
const express = require('express');
const cors = require('cors')({origin: true});
const router = new express.Router();

 router.use(cors);  
 router.get('*', (req, res) => {
      res.setHeader('Access-Control-Allow-Origin', '*').status(200)
            .send('Hello, Functions');
    });

exports.date = functions.https.onRequest(router);

但是我收到了这个错误:

XMLHttpRequest cannot load https://us-central1-idntt-baed5.cloudfunctions.net/date. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://idntt-baed5.firebaseapp.com' is therefore not allowed access. The response had HTTP status code 500.

Answer 1

您要执行的操作的正确代码是:

const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);

// Start writing Firebase Functions
// https://firebase.google.com/functions/write-firebase-functions

exports.date = functions.https.onRequest((request, response) => {
    response.send("Hello, Functions");
})

现在你应该去喜欢这个https://us-central1-idntt-baed5.cloudfunctions.net/date .

并且您不允许使用 Access-Control-Allow-Origin