Memory leak when using flash socket/jsonp-polling transport #496
Description
Description
On IE9, on a Win7 machine the memory grows continously to the point where it crashes the browser when the flash socket/jsonp transport method is being used.
For flash socket transport the issue occurs when the data size is larger( a few KB ) and when the messages are sent fast and in a continous mode.
The issue reproduces on Socket.IO version 0.9.11 but also on older versions like 0.6.3 .
Steps to reproduce
Use Socket.IO version 0.9.11 .
On IE9( Win7 machine ) enable the flash-socket/JSONP-polling transport method.
Fire off the server, connect with the client and monitor the memory usage using "Resource monitor".
Expected Result
The memory is fairly stable or it grows but it gets de-allocated after a while.
Actual Result
The memory builds up continously to 1GB+ to the extent where it crashes the browser.
Testing code
Client side
var socket = io.connect('server_url', {port:3000, transports:[flashsocket']});
socket.on('message', function (data) {
console.log(data);
});
Server side
var server = http.createServer(app);
io = io.listen(server, {"transports":['flashsocket']});
// Setup some test data
var testData = "a";
for( var i = 0; i < 16; i++ )
testData = testData+testData;
io.sockets.on('connection', function (socket) {
setInterval( function() {
socket.emit('message', testData);
}, 10);
});