跨域解决方案
express服务器:
在路由前面添加如下代码即可:
app.all('*', function (req, res, next) { res.header('Access-Control-Allow-Origin', '*'); res.header('Access-Control-Allow-Headers', 'Content-Type'); res.header('Access-Control-Allow-Methods', '*'); res.header('Content-Type', 'application/json;charset=utf-8'); next(); });