POST AJAX请求被拒绝 - CORS? [英] POST AJAX request denied - CORS?
问题描述
我在我的node.js服务器端口5000上设置CORS如下:
var app = express
app.use(cors()); // normal CORS
app.options('*',cors()); // preflight
app.post('/ connect',function(req,res){
console.log(Connection request received!)
});
var port = 5000;
app.listen(port,function(){
console.log('Listening on port'+ port);
});
我现在尝试使用JQuery发送AJAX POST请求,在静态网页打开我的硬碟:
var xhr = $ .post({
$ p>
url:'http:// localhost:5000 / connect',
complete:function(){
console.log(done!)
},
crossDomain:true
}
xhr.fail(function(xhr,status,error){
alert(error)
})
完成
函数从未被调用,并且我获得的唯一警报是来自XHRfail
处理程序,包含以下错误:NS_ERROR_DOM_BAD_URI:访问受限URI拒绝
我认为CORS配置良好,我缺少什么? >
编辑:对于我的案例,我能找到的最好的解决方案是发送页面服务器:
app.use(express.static('web'))
应用程序。 get(/,function(req,res){
res.sendFile(__ dirname +'/web/HTML/index.html');
});
解决方案这是我使用的代码。它位于我的app.js文件中
app.all(/ *,function(req,res,next) {
res.header(Access-Control-Allow-Origin,req.headers.origin);
res.header(Access-Control-Allow-Credentials,true) ;
res.header('Access-Control-Allow-Methods','GET,PUT,POST,DELETE,OPTIONS');
res.header '
if('Content-Type,Accept,X-Access-Token,X-Key,Authorization,X-Requested-With,Origin,Access-Control-Allow-Origin,Access-Control-Allow-Credentials' (req.method ==='OPTIONS'){
res.status(200).end();
} else {
next();
}
});
I have setup CORS on my node.js server on port 5000 as follows:
var app = express(); app.use(cors()); //normal CORS app.options('*', cors()); //preflight app.post('/connect', function(req, res) { console.log("Connection request received !") }); var port = 5000; app.listen(port, function () { console.log('Listening on port '+port); });
I am now trying to send AJAX POST requests using JQuery like so, in a static web page open from my hard disk :
var xhr = $.post({ url: 'http://localhost:5000/connect', complete: function() { console.log("done !") }, crossDomain: true }); xhr.fail(function(xhr, status, error){ alert(error) })
The
complete
function is never called, and the only alert I get is an alert from the XHRfail
handler, containing the following error :NS_ERROR_DOM_BAD_URI: Access to restricted URI denied
I think CORS is well-configured, what am I missing ?
EDIT : for those in my case, the best solution I could find was to send the page from the server :
app.use(express.static('web')) app.get("/", function(req, res) { res.sendFile(__dirname + '/web/HTML/index.html'); });
解决方案This is the code I am using. It is located in my app.js file
app.all("/*", function (req, res, next) { res.header("Access-Control-Allow-Origin", req.headers.origin); res.header("Access-Control-Allow-Credentials",true); res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE,OPTIONS'); res.header('Access-Control-Allow-Headers', 'Content-Type,Accept,X-Access-Token,X-Key,Authorization,X-Requested-With,Origin,Access-Control-Allow-Origin,Access-Control-Allow-Credentials'); if (req.method === 'OPTIONS') { res.status(200).end(); } else { next(); } });
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