PerfectScrollbar elements are forced to be used

[tejasvih]

Using of elements for PerfectScrollbar is forced in paper-dashboard.js

(function() {
isWindows = navigator.platform.indexOf('Win') > -1 ? true : false;

if (isWindows) {
// if we are on windows OS we activate the perfectScrollbar function
var ps = new PerfectScrollbar('.sidebar');
var ps = new PerfectScrollbar('.sidebar-wrapper');
var ps2 = new PerfectScrollbar('.main-panel');
$('html').addClass('perfect-scrollbar-on');

} else {
$('html').addClass('perfect-scrollbar-off');
}
})()

In situations like where we do not want sidebar or sidebar-wrapper or main-panel, it throws error