Show Specific User Page in Telegram

I'm creating an app by phonegap and I want to open Telegram groups or channels from my app.

In other mean when I click on a group , Telegram open and that group shows to user.

I used the following code but I don't know how to switch to specific @username page :

   var username = '
    navigator.startApp.start("org.telegram.messenger", function(message) {  /* success */
        console.log(message); // => OK
    },
    function(error) { /* error */
        console.log(error);
    });

I've tried to do this by open tg:resolve?domain=username in browser but my browser give me an erro :

net::ERR_UNKNOWN_URL_SCHEME