random-guess

test.js

// here is how I suspect you are currently doing something.
// Assuming you have a piece of data you need to send back with your request processing:

function sendMyRequest(info)
{
    var response_callback = function(data) {
        callMyActualReturnMethod(data, info);
    }
    $.get('/some/path', response_callback, 'json');
}


// here is how this should be done to avoid issues

function sendMyRequest(info)
{
    var response_callback = function(info) {
        return function(data) {
            callMyActualReturnMethod(data, info);
        }
    }
    $.get('/some/path', response_callback(info), 'json');
}