版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/weixin_38115427/article/details/79444297
1.在app.js中加入下列代码,需要注意这段代码必须在router之前
// Setting up cross - domain access must be before router app.use(function (req, res, next) { res.header('Access-Control-Allow-Origin', '*'); res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE'); res.header('Access-Control-Allow-Headers', 'Content-Type'); res.header('Access-Control-Allow-Credentials', 'true'); next(); });
示例