allow cross origin node
app.use(function(req, res, next) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
next();
});allow cross origin node
app.use(function(req, res, next) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
next();
});cors express
var allowedOrigins = ['http://localhost:3000',
'http://yourapp.com'];
app.use(cors({
origin: function(origin, callback){
// allow requests with no origin
// (like mobile apps or curl requests)
if(!origin)
return callback(null, true);
if(allowedOrigins.indexOf(origin) === -1){
var msg = 'The CORS policy for this site does not ' +
'allow access from the specified Origin.';
return callback(new Error(msg), false);
}
return callback(null, true);
}
}));cors in javascript
Cross-Origin Resource Sharing (CORS) is an HTTP-header based mechanism that
allows a server to indicate any other origins (domain, scheme, or port) than
its own from which a browser should permit loading of resources. CORS also
relies on a mechanism by which browsers make a “preflight” request to the
server hosting the cross-origin resource, in order to check that the server
will permit the actual request. In that preflight, the browser sends headers
that indicate the HTTP method and headers that will be used in the actual
request.Copyright © 2021 Codeinu
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