Maybe it’s better to look at it this way: is anything unusual (other than pushstate, which doesn’t exist) broken in IE9?
Can you answer that question @DeanMarkTaylor ? That might be more useful to us than regurgitating a bunch of javascript error logs submitted by the client… I did download the IE9 vm which is 3.5 gb, but it’s hard to make time on MLK day with 3 kids at home, etc.