const cors = require('cors');
const corsOptions ={
origin:'http://localhost:3000',
credentials:true, //access-control-allow-credentials:true
optionSuccessStatus:200
}
app.use(cors(corsOptions));/*
npm i cors
or
yarn add cors
then in your node app
*/
const cors = require('cors');
const corsOptions ={
origin:'http://localhost:3000',
credentials:true, //access-control-allow-credentials:true
optionSuccessStatus:200
}
app.use(cors(corsOptions));app.use(function (req, res, next) {
//Enabling CORS
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Methods", "GET,HEAD,OPTIONS,POST,PUT");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type,
Accept, x-client-key, x-client-token, x-client-secret, Authorization");
next();
});//Access to XMLHttpRequest at 'http://localhost/[api path].php' from origin 'http://localhost:4200' has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response.
//The error is simply saying that "Content-Type" is missing from "Access-Control-Allow-Headers".
//Therefore we need to add "Content-Type" to "Access-Control-Allow-Headers".
<?php
header('Access-Control-Allow-Headers: Content-Type');
-----
?>@app.route('your route', methods=['GET'])
def yourMethod(params):
response = flask.jsonify({'some': 'data'})
response.headers.add('Access-Control-Allow-Origin', '*')
return responseapp.use(function (request, response, next) {
response.header("Access-Control-Allow-Origin", "*");
response.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
next();
});