「Angular: CORS预检响应未成功」
「Angular: CORS预检响应未成功」
此问题在这里已有答案:
CORS: Cannot use wildcard in Access-Control-Allow-Origin when credentials flag is true
大家好，
我遇到了一个用户注册应用的问题，希望你们能帮我解决这个问题：
我正在使用MongoDb，Express，Angular和NodeJs，这是app.js的样子（我还包括显示在Firefox和Chrome中的错误截图）。谢谢
![\"enter](\"https://i.stack.imgur.com/ohQeO.png\")
var express = require('express');
var bodyParser = require('body-parser');
var app =express();
var user_routes = require('./routes/user');
var follow_routes = require('./routes/follow');
var publication_routes = require('./routes/publication');
var message_routes = require('./routes/message');
app.use(bodyParser.urlencoded({extended:false}));
app.use(bodyParser.json());
app.use((req, res, next) => {
res.header('Access-Control-Allow-Origin', '*');
res.header('Access-Control-Allow-Headers', 'Authorization, X-API-KEY, Origin, X-Requested-With, Content-Type, Accept, Access-Control-Allow-Request-Method');
res.header('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, DELETE');
res.header('Allow', 'GET, POST, OPTIONS, PUT, DELETE');
next();
});
app.use('/api', user_routes);
app.use('/api', follow_routes);
app.use('/api', publication_routes);
app.use('/api', message_routes);
module.exports = app;
admin 更改状态以发布 2023年5月20日
