Nodejs+expressjs Resolving Cross-domain Requests Cors

http://blog.csdn.net/baby97/article/details/50329491

Although the front-end has a variety of ways to deal with Cross-domain, but more than fine, the shortcomings are more obvious. A relatively better way is to get involved with the back end, which is not only more adaptable, but also a front-end that sends a normal AJAX request. This technique is called cors.

Cross-origin Resource sharing Cross-domain resource sharing should be considered the most recommended cross-domain processing scenario. Not only for all kinds of method, but also more convenient and simple. Of course, the only thing that hangs like this is the modern browser support, IE8 the old relic. .

var express = require (' Express ');
var app = Express ();
Sets the Cross-domain access to this
app.all (' * ', function (req, res, next) {
    Res.header ("Access-control-allow-origin", "*") before other settings. ;
    Res.header ("Access-control-allow-headers", "X-requested-with");
    Res.header ("Access-control-allow-methods", "put,post,get,delete,options");
    Res.header ("x-powered-by", ' 3.2.1 ')
    res.header ("Content-type", "Application/json;charset=utf-8");
    Next ();
});

App.get ('/auth/:id/:p assword ', function (req, res) {
    res.send ({id:req.params.id, name:req.params.password});
}) ;

App.listen (3000);