lucy24 - 1:23 am on Jul 3, 2013 (gmt 0)
IE does not update the url in the browser if the page is not found
If the page isn't found, the URL isn't supposed to change. The 404 should be displayed at the original URL.
The only thing I can complain about now is this url format :
redirects to www.test.com/subs/blog/ then
redirects to blog.test.com
because it has two redirects in one.
You've got the rules in the wrong order. In fact this may be an artifact of having a rewrite before a redirect; is it still happening?