How to enable CORS policy in live server ??

[pramodbhandari68]

Access to XMLHttpRequest at 'https://chat.merooffer.com/socket.io/?id=%2028&EIO=3&transport=polling&t=NVp6P41' from origin 'https://merooffer.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

[sagarankoliya]

Use this

https://www.npmjs.com/package/cors

[pramodbhandari68]

https://www.npmjs.com/package/cors -- It is not working
can you please try it in server and fix the issue ...i am struggling day and night to fix this

[sagarankoliya]

Send me the screenshot of code where you had added cors package in node server
And also send me the screenshots of errors are you facing.

[pramodbhandari68]

[sagarankoliya]

Follow these because we are using socket.io V2.x

https://socket.io/docs/v2/handling-cors/

[pramodbhandari68]

https://socket.io/docs/v2/handling-cors/ i also have tried following this documentation but it still doesn't work dont know why ?? can you please fix it by uploading it in the server. I have done this many times but it doesn't work the same cors issue arises.

[sagarankoliya]

Try this in your server, i have no any server for test.

npm install cors

Use below code for nodejs server index.js file

---

'use strict';

const express = require('express');
const http = require('http');
const socketio = require('socket.io');
var cors = require('cors')
const socketEvents = require('./utils/socket');

class Server {
constructor() {
this.port = process.env.PORT || 3000;
this.host = process.env.HOST || localhost;

    this.app = express();
    this.http = http.Server(this.app);
    this.socket = socketio(this.http, {
		origins: ['https://merooffer.com']
	});
}

appRun(){
	new socketEvents(this.socket).socketConfig();
	this.app.use(express.static(__dirname + '/uploads'));
	this.app.use(cors());
    this.http.listen(this.port, this.host, () => {
        console.log(`Listening on http://${this.host}:${this.port}`);
    });
}

}

const app = new Server();
app.appRun();

---

[pramodbhandari68]

is there any code for client side ... it still doesn't work

[sagarankoliya]

didn't found that , you need to debug and google that issue, i also try for you. and also try to use node https module instead of http because your domain is https

[pramodbhandari68]

okey sir thank you so much ...

[tayyab2020]

Hi @pramodbhandari68,
Were you able to fix this?