Post/Response

Great tool! I was wondering if there has ever been discussion about how to receive data back from a child frame immediately after a post from the parent frame. Example:

Parent Frame, in some type of mootools/jquery class-like object:

getDataForThing: function(thingId){
    var post = this.proxy.post({ // posts to a child frame
        cmd: 'getDataForThing',
        thingId: 1
    });
       console.log(post) // {data: 123}
}

Then, maybe in the child Frame logic:

proxy.addEventListener(function(event) {
    switch (event.data.cmd){
        case 'getDataForThing':
            var data = 123;
            return data;
            break;
    }
});

Admittedly, I know very little about the underlying tech that makes this possible, but there's always hope for something creative! Thanks!