(function($) {
'use strict';
/*---------------------------------------------------- */
/* Preloader
------------------------------------------------------ */
$(window).load(function() {
// will first fade out the loading animation
$("#loader").fadeOut("slow", function(){
// will fade out the whole DIV that covers the website.
$("#preloader").delay(100).fadeOut("slow");
});
})
/*----------------------------------------------------*/
/* Flexslider
/*----------------------------------------------------*/
$(window).load(function() {
$('#hero-slider').flexslider({
namespace: "flex-",
controlsContainer: ".hero-container",
animation: 'fade',
controlNav: true,
directionNav: false,
smoothHeight: true,
slideshowSpeed: 7000,
animationSpeed: 600,
randomize: false,
before: function(slider){
$(slider).find(".animated").each(function(){
$(this).removeAttr("class");
});
},
start: function(slider){
$(slider).find(".flex-active-slide")
.find("h1").addClass("animated fadeInDown show")
.next().addClass("animated fadeInUp show");
$(window).trigger('resize');
},
after: function(slider){
$(slider).find(".flex-active-slide")
.find("h1").addClass("animated fadeInDown show")
.next().addClass("animated fadeInUp show");
}
});
$('#testimonial-slider').flexslider({
namespace: "flex-",
controlsContainer: "",
animation: 'slide',
controlNav: true,
directionNav: false,
smoothHeight: true,
slideshowSpeed: 7000,
animationSpeed: 600,
randomize: false,
});
});
/*----------------------------------------------------*/
/* Adjust Primary Navigation Background Opacity
------------------------------------------------------*/
$(window).on('scroll', function() {
var h = $('header').height();
var y = $(window).scrollTop();
var header = $('#main-header');
if ((y > h + 30 ) && ($(window).outerWidth() > 768 ) ) {
header.addClass('opaque');
}
else {
if (y < h + 30) {
header.removeClass('opaque');
}
else {
header.addClass('opaque');
}
}
});
/*----------------------------------------------------*/
/* Highlight the current section in the navigation bar
------------------------------------------------------*/
var sections = $("section"),
navigation_links = $("#nav-wrap a");
sections.waypoint( {
handler: function(direction) {
var active_section;
active_section = $('section#' + this.element.id);
if (direction === "up") active_section = active_section.prev();
var active_link = $('#nav-wrap a[href="#' + active_section.attr("id") + '"]');
navigation_links.parent().removeClass("current");
active_link.parent().addClass("current");
},
offset: '25%'
});
/*----------------------------------------------------*/
/* FitText Settings
------------------------------------------------------ */
setTimeout(function() {
$('#hero-slider h1').fitText(1, { minFontSize: '30px', maxFontSize: '49px' });
}, 100);
/*-----------------------------------------------------*/
/* Mobile Menu
------------------------------------------------------ */
var menu_icon = $("<span class='menu-icon'>Menu</span>");
var toggle_button = $("<a>", {
id: "toggle-btn",
html : "",
title: "Menu",
href : "#" }
);
var nav_wrap = $('nav#nav-wrap')
var nav = $("ul#nav");
/* if JS is enabled, remove the two a.mobile-btns
and dynamically prepend a.toggle-btn to #nav-wrap */
nav_wrap.find('a.mobile-btn').remove();
toggle_button.append(menu_icon);
nav_wrap.prepend(toggle_button);
toggle_button.on("click", function(e) {
e.preventDefault();
nav.slideToggle("fast");
});
if (toggle_button.is(':visible')) nav.addClass('mobile');
$(window).resize(function() {
if (toggle_button.is(':visible')) nav.addClass('mobile');
else nav.removeClass('mobile');
});
$('ul#nav li a').on("click", function() {
if (nav.hasClass('mobile')) nav.fadeOut('fast');
});
/*----------------------------------------------------*/
/* Smooth Scrolling
------------------------------------------------------ */
$('.smoothscroll').on('click', function (e) {
e.preventDefault();
var target = this.hash,
$target = $(target);
$('html, body').stop().animate({
'scrollTop': $target.offset().top
}, 800, 'swing', function () {
window.location.hash = target;
});
});
/*----------------------------------------------------*/
/* Modal Popup
------------------------------------------------------*/
$('.item-wrap a').magnificPopup({
type:'inline',
fixedContentPos: false,
removalDelay: 300,
showCloseBtn: false,
mainClass: 'mfp-fade'
});
$(document).on('click', '.popup-modal-dismiss', function (e) {
e.preventDefault();
$.magnificPopup.close();
});
})(jQuery);
У меня в опере всё загрузилось. проверьте на вечной загрузке у себя в инспекторе консоль, возможно там ошибки валит, они помогут понять в чём дело. Из-за них может не срабатывать триггер скрытия анимации загрузки. 
Средний
