HTML5 History in IE10

Building fast and functional sites is a challenge with which most Web developers are familiar. Loading a new page every time the user clicks a link is slow. Fetching all content dynamically effectively disables the back button. Working with hashes is better, but still not ideal. Internet Explorer 10 in the Windows Developer Preview eliminates the compromise by adding support for HTML5 History. The pushState, replaceState, and popstate APIs provide fine-grained control over the behavior of the back button and the URL presented to the user for dynamic content. Together these APIs help you improve the performance of your site without sacrificing usability.
If you’re not already familiar with the HTML5 History APIs, think of pushState as being the dynamic equivalent of navigating to another page. Similarly, replaceState is much like location.replace. The difference is these APIs leave the current page intact when updating the session history by storing states instead of pages. Both pushState and replaceState take three parameters: a data object, a title, and an optional URL.

history.pushState(data, title, url);

history.replaceState(data, title, url);

Note that the title parameter to pushState and replaceState is ignored by most browsers, including IE10. If you want, you can still provide this information since future browsers may expose it as part of their history UI.