Strange problem, so i`ll explain with examples.
Case 1 : visiting domain.com - Everything is fine. - If i click homepage or any other page, again everything is fine.
Case 2: visiting domain.com , refresh the site after page load with F5(browser refresh) - random 403 forbidden files, example : http://domain.com/Images/Something/car.jpg
Case 3: visiting domain.com, refresh the site with ctrl+shift+r (browser refresh with clear local cache) - Everything works fine.
Site is asp.net mvc 4, hosted on IIS 8. Any suggestion?
p.s those random 403 files opened separated in browser are always fine.
similar problem here, but this article is too old, http://blogs.msdn.com/b/david.wang/archive/2006/02/08/howto-fix-random-403-errors-that-cause-images-to-not-display.aspx?Redirected=true