的火力點返回響應500

Question

雲功能這是我調用

'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); 

但我發現了這個錯誤的函數：

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

爲你正在嘗試做正確的代碼將是：

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"); 
}) 

現在你應該去這樣https://us-central1-idntt-baed5.cloudfunctions.net/date。

，你不允許使用訪問控制允許來源

Answer 2

如果您要求通過火力託管你（火力主機）網站/網頁的功能應該添加一個重寫規則。它的火力地堡文檔中解釋說：https://firebase.google.com/docs/hosting/functions#directing_hosting_requests_to_your_function

Answer 3

爲你正在嘗試做正確的代碼是：

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

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

它可能會產生這樣的錯誤，

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. 

請使用此標頭xhr要求

req.setRequestHeader('Access-Control-Allow-Origin', '*'); 

嘗試在Mozilla Firefox中運行，由於安全問題，Google Chrome不支持此功能