memory leak problem

[mef]

There seems to be a memory leak problem on tuiter's REST API methods.

example code to reproduce the issue:

var cnt = -1;

makeRequest()

function makeRequest() {
// 1. perform a request to the tuiter API
// 2. re-attempt after a short delay
// 3. log rss memory usage every 50 requests
    cnt++

    tu.showUser({screen_name:'jack' }, function(err, data){
        if (err) console.log('error', err, data)
        if (cnt % 50 == 0) {
            // display rss memory usage
            console.log(process.memoryUsage().rss)
        }
        var t = setTimeout(function() {
            // re-run the request after a short delay
                makeRequest()
        }
        , 50)
        t = null
        data = null
        err = null
    })

}

The log will show that the memory usage is constantly increasing. Am I doing something wrong?

Could this be related to ladjs/superagent#152 or to ladjs/superagent#193

Any known workaround or fix ?