How do I share in UWP (Windows 10)

 var dataTransferManager = Windows.ApplicationModel.DataTransfer.DataTransferManager.getForCurrentView();
        dataTransferManager.addEventListener("datarequested", function (e) {
            var request = e.request;
            request.data.properties.title = "Your title";
            request.data.setText("Your text");
        });
        Windows.ApplicationModel.DataTransfer.DataTransferManager.showShareUI();[/code:ino4bg1b]
[b]2.[/b] Import [i]share.js[/i] in project.
[b]3.[/b] Browser object -> Execute Javascript:
[code:ino4bg1b]var js = document.createElement('script');
js.type = 'text/javascript'; 
js.src = 'share.js';
document.body.appendChild(js);[/code:ino4bg1b]
[b]4.[/b] Export project for VS2015

And it work on windows 10 and windows 10 mobile - Share UI is shown and I can choose any social network in which I want to share. Why Windows Store object can't do that?