silvrgit/app/app.js

(function() {
   document.title = 'Slack';
})();

let popitout = function(url) {
  let newwindow = window.open(url, 'name', 'height=600,width=570');
  if (window.focus) {
    newwindow.focus();
  }
  return false;
};

let popitoutSmall = function(url) {
  let newwindow = window.open(url, 'name', 'height=400,width=520');
  if (window.focus) {
    newwindow.focus();
  }
  return false;
};