NodeJS设置Header解决跨域问题
1 app.all('*', function (req, res, next) { 2 res.header('Access-Control-Allow-Origin', '*'); 3 res.header('Access-Control-Allow-Headers', 'Content-Type, Content-Length, Authorization, Accept, X-Requested-With , yourHeaderFeild'); 4 res.header('Access-Control-Allow-Methods', 'PUT, POST, GET, DELETE, OPTIONS'); 5 if (req.method == 'OPTIONS') { 6 res.send(200); 7 } else { 8 next(); 9 } 10 });