在后端服务的响应中添加Access-Control-Allow-Credentials和Access-Control-Allow-Origin头部信息。同时将Access-Control-Allow-Origin设置为请求域名。示例代码如下:
app.use(function(req, res, next) { res.header("Access-Control-Allow-Origin", req.headers.origin); res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept"); res.header("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS"); res.header("Access-Control-Allow-Credentials", true); next(); });