Weird caracters show up before progress bar

[AntoineABI]

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• node v 6.3.0
• inside a fiber or not...
• when doing a console.log after progress ended
• have weird "[-1;1" showing up before the progress bar and messing up all the formating (line is wrapped)

Here is a sample code to reproduce it (using sync module for fiber). Actually it does the same to me even outside a fiber!

let Sync = require('sync');
let ProgressBar = require('ascii-progress');

Sync(function () {

    let bar = new ProgressBar({
        schema: ':bar',
        total: 100
    });

    var iv = setInterval(function () {
        bar.tick();
        if (bar.completed) {
            clearInterval(iv);
            console.log('woops!');
        }
    }, 10);
});

End up in:

[-1;1H▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ woops!

[AntoineABI]

And btw this node module has an issue with installation. Error: Cannot find module './build/release/pos' It happens on require because the Release folder initially begin with a capital, I suppose it works fine on windows systems!