io Module
The IO class is a utility that brokers HTTP requests through a simplified interface. Specifically, it allows JavaScript to make HTTP requests to a resource without a page reload. The underlying transport for making same-domain requests is the XMLHttpRequest object. IO can also use Flash, if specified as a transport, for cross-domain requests.
Y.io('/some/url', {
    on: {
        success: function(id, e) {
            Y.log(e.responseText);
        }
    }
});
This module is a rollup of the following modules:
- 
                    
                        io-form
                    
                    Extends IO to enable HTML form data serialization, when specified in the transaction's configuration object.
- 
                    
                        io-queue
                    
                    Extends IO to implement Queue for synchronous transaction processing.
- 
                    
                        io-upload-iframe
                    
                    Extends the IO to enable file uploads, with HTML forms using an iframe as the transport medium.
- 
                    
                        io-xdr
                    
                    Extends IO to provide an alternate, Flash transport, for making cross-domain requests.
