/**
 * Fix for '#_=_' by facebook social login
 */
if ( window.location.hash && window.location.hash == '#_=_' ) {
    if (window.history && history.pushState) {
        window.history.pushState("", document.title, window.location.pathname);
    } else {
        // Prevent scrolling by storing the page's current scroll offset
        var scroll = {
            top: document.body.scrollTop,
            left: document.body.scrollLeft
        };
        window.location.hash = '';
        // Restore the scroll offset, should be flicker free
        document.body.scrollTop = scroll.top;
        document.body.scrollLeft = scroll.left;
    }
}