html 5 history restores some changes and not others?

html 5 history restores some changes and not others?

References

Reference NO 1

http://stackoverflow.com/questions/13633691/html-5-history-restores-some-changes-and-not-others

Reference NO 2

http://msdn.microsoft.com/en-us/hh771459.aspx

Reference NO 3

http://html5doctor.com/history-api/

Reference NO 4

http://diveintohtml5.info/history.html

Reference NO 5

https://developer.mozilla.org/en-US/docs/Web/Guide/DOM/Manipulating_the_browser_history

Reference NO 6

http://webdesign.about.com/od/historyapi/a/what-is-history-api.htm

Reference NO 7

http://coding.smashingmagazine.com/2010/09/23/html5-the-facts-and-the-myths/

Reference NO 8

https://www.inkling.com/read/javascript-definitive-guide-david-flanagan-6th/chapter-22/history-management