Socket.io TypeError: this.transport is undefined

Question

Socket.io TypeError: this.transport is undefined

I have added user side error logging on my site. Some times it logs this kind of error coming from socket.io code:

TypeError: this.transport is undefined

The error have only been seen from users with Firefox 15th version on Windows.

On server side I define my transports like this:

this.io.configure(function(){
    self.io.set('transports', ['websocket', 'flashsocket', 'htmlfile', 'xhr-polling', 'jsonp-polling']);
    self.io.set('log level', 0);
});

Socket.io version is 0.9.10.

Can you please tell me what could be the reasons for this error?

Any help appreciated.

javascript
node.js
socket.io

Answer 1

The configure method is used for setting configuration for a specific environment. You are not specifying an environment, so you can remove the configure callback function and simply do:

this.io.set('transports', ['websocket', 'flashsocket', 'htmlfile', 'xhr-polling', 'jsonp-polling']);
this.io.set('log level', 0);