Is monitoring location.hash a solution for history in XHR apps?

Question

As is well known, in XHR (aka AJAX) web applications no history for your app is build and clicking the refresh button often moves the user out of his/her current activity. I

Answer 1

All that stuff is important for supporting the full range of browsers, but hopefully the need for it will go away. IE8 and FF3.6 both introduced support for onhashchange. I imagine that others will follow suit. It would be a good idea to check for the availability of this functionality before using timeouts or iframes, as it is really the nicest solution currently out there - and it even works in IE!