Axios+Node.js+React环境下Fetch请求超时失败问题求助

我的Fetch请求耗时过长最终失败，已在Chrome、Edge和Postman中测试；其他直接调用Pixabay API的Fetch请求可正常工作，对比过往项目代码未发现异常，按指引在package.json中添加代理后也无效。以下是相关代码片段：

控制器代码 #

import axios from 'axios'

export const getAll = async () =>{
const response = await axios.get('https://pixabay.com/api/?key=25540812-faf2b76d586c1787d2dd02736')
.then(resp=>resp)
.catch(err=>console.log(err));
return response;
}

路由代码 #

import express from "express";
import * as homeController from '../controllers/home.controller.js'

const homeRouter = express.Router();

homeRouter.get('/all', homeController.getAll)

export default homeRouter

入口文件代码 #

import express from "express"
import dotenv from "dotenv"
import homeRouter from './routers/home.router.js'
dotenv.config();

const PORT = 3000 //process.env.PORT
console.log(PORT);


const app = express();

app.use(express.json());

app.use(homeRouter)

app.listen(PORT, ()=>{console.log(`server is connected on port ${PORT}`)})

前端Fetch代码 #

const getAll = async()=>{
    try {
        const response = await fetch (`http://localhost:3000/all`)
        console.log("hu");
        if (!response.ok) {
            throw new Error();
        }
        else{
            console.log("ok");
        }
        const responseObj = await response.json();
       console.log(responseObj);
    } 
    catch (error) {
        console.log(error);
    }
}

useEffect(()=>{
    getAll();
},[])

内容的提问来源于stack exchange，提问作者Omri Azran