express.js跨域请求代码如下:
app.all('*',function(req,res,next) { res.header("Access-Control-Allow-Origin","); res.header(Access-Control-Allow-HeadersX-Requested-WithAccess-Control-Allow-MethodsPUT,POST,GET,DELETE,OPTIONSX-Powered-By 3.2.1) res.header(Content-Typeapplication/json;charset=utf-8); next(); });
按照上面的代码,即可解决跨域问题。