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I have a node (0.6.11)/socket.io(0.9.0) application that runs well in FF but IE8 throws JS exceptions:
Access is denied
in socket.io.js (line 2561):
req.open(method || 'GET', this.prepareUrl() + query, true);
a few lines before that, req is defined as
req = io.util.request(this.socket.isXDomain())
This suggests it is a cross domain issue, but I'm doing it locally all the way. Plus FF has no issues.
What could be the cause?
.
Here's the source code:
SERVER:
var app = require('express').createServer()
, io = require('socket.io').listen(app);
app.listen(1337);
app.get('/', function (req, res) {
res.sendfile(__dirname + '/index.html');
});
io.sockets.on('connection', function (socket) {
socket.emit('news', { hello: 'world' });
socket.on('my other event', function (data) {
console.log(data);
});
});
CLIENT:
<html>
<head>
</head>
<body>
<div id='contents'>
</div>
<script src="http://localhost:1337/socket.io/socket.io.js"></script>
<script>
var socket = io.connect('http://127.0.0.1:1337');
socket.on('news', function (data) {
console.log(data);
socket.emit('my other event', { my: 'data' });
});
</script>
</body>
</html>
I read about setting the secure flag to true and that makes the exception go away but then it siliently fails and does nothing. In FF and IE.
sorry nobody bothers to answer you, but the issue is that you are doing CORS, (cross-origin-resource-sharing), meaning your socket.io server is running on a different port from your webserver (i assume port 80, but you don't explicitly say it)
the IE8 and IE9 have very limited CORS support. i don't know a solution for IE8 support, but that's your problem. more details can be found here: http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx