I was looking around for some time into example made by Sebastian Sulinki 

here' demo -  http://html5-history-pushstate.ssdtutorials.com/

It is perfect, but it seems that `window.onpopstate = function(){`

does not work on document ready or window load in firefox and interner explorer 11 and 10 

It does trigger on other browsers.

I can't demonstrate in on my server because it wont work(demo) on not domain

script works only on domain.com/ will not work server.com/folder/

So sorry about that, I dont have any free domain.

But if anyone would like to invastigate it a bit more, just download it and try on localhost/ (not lower folder but main directory)

or on some domain

Then easy way to check it is to add `console.log("this url is " + url);` to this fragment of script

1.     load: function(url) {
2.         url = url === '/' ? '/ygwyg' : url;
3.         jQuery.getJSON(url, {
4.             ajax: 1
5.         }, function(data) {
6.             
7.             jQuery.each(data, function(k, v) {
8.                 $('#' + k + ' section').fadeOut(200, function() {
9.                     $(this).replaceWith($(v).hide().show());
10.                     console.log(url)
11.                 });
12.             });
13.         });
14. 
    
15.     },

When you'll open website on chrome it will show url at start, but on FF and IE it will show nothing until you'll press `#navigation a` button then script trigger.

Thanks for time used and any anwsers, tips, info :)

**EDIT:** 

I found out here(link under) about that will not trigger - but why? any solutions?

http://blog.teamtreehouse.com/getting-started-with-the-history-api