问题描述
我有一个在FF中运行良好的节点（0.6.11）/socket.io（0.9.0）应用程序，但IE8引发JS异常：
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
req.open(method || 'GET', this.prepareUrl() + query, true);
之前的几行，req定义为
a few lines before that, req is defined as
req = io.util.request(this.socket.isXDomain())
这表明这是一个跨域问题，但我在本地一路做。 Plus FF没有问题。
This suggests it is a cross domain issue, but I'm doing it locally all the way. Plus FF has no issues.
可能是什么原因？
。
以下是源代码：
服务器：
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);
});
});
客户：
<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>
我读了关于将安全标志设置为true，使异常消失，并且什么也不做。在FF和IE。
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.
推荐答案
抱歉没有人打扰你回答，但问题是你正在做CORS，原始资源共享），意味着你的socket.io服务器运行在不同的端口上，从你的web服务器（我假设端口80，但你没有明确说它）
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)
IE8和IE9有非常有限的CORS支持。我不知道IE8支持的解决方案，但这是你的问题。更多详情可以在这里找到：
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
这篇关于NodeJS-socket.io获取“访问被拒绝”例外的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！