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POSocket.io cross-domain issue - Origin is not allowed by Access-Control-Allow-Origin
 

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    <p>I have a website at a url (example.com) and am using node.js/socket.io to pass JSON into my webpage. I'm currently receiving an error: "XMLHttpRequest cannot load <a href="http://example.com:12003/socket.io/1//897026922693503087/?disconnect=1" rel="nofollow">http://example.com:12003/socket.io/1//897026922693503087/?disconnect=1</a>. Origin <a href="http://example.com" rel="nofollow">http://example.com</a> is not allowed by Access-Control-Allow-Origin."</p> <p>My node code looks like the following:</p> <pre><code> var http = require('http'); var mysqlClient = require('mysql').createClient({'user':'root','password':'XXXXXXXX'}); mysqlClient.query('USE myDBName'); var mysqlData; setInterval(function(){ mysqlClient.query( 'SELECT number, page_id FROM dbTableName', function selectCb(err, results, fields) { if (err) { throw err; } mysqlData = []; for(var i = 0; i &lt; results.length; i++){ mysqlData[i] = results[i]; } }); }, 1000); var io = require('socket.io').listen(12003); io.sockets.on('connection', function(client) { console.log("New Connection: ", client.id); //log new connection client.emit('connection', client.id);//custom emit to let site know its connected client.on("requestNewData", function(data){ client.emit('init', JSON.stringify(mysqlData)); }); client.on('disconnect', function() { console.log("Disconnected: ", client.id); }); }); </code></pre> <p>I've tried this line of code to fix the issue with no success:</p> <pre><code> var io = require('socket.io').listen(12003, {origins: '*:*'}); </code></pre> <p>I'm running on an Amazon EC2 with Ubuntu Ocelot. My client side code is:</p> <pre><code> &lt;script src="http://example.com:12003/socket.io/socket.io.js"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; var socket = io.connect('http://example.com:12003'); socket.emit("requestNewData", {"nothing":"here"}); ... </code></pre> <p>Since I'm just using a socket I don't think I can use 'Access-Control-Allow-Origin' : '*' in my node code. Any help would be greatly appreciated. The error I'm receiving is only on Chrome - from my understanding Chrome is more restrictive about cross-domain connections...</p> <p>Thanks in advance.</p>
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