Just incase we need the patch to resolve
SAK-20058 (and I keep getting contacted about it), I created a better version of the patch for 2.5.x ( SAK-16074) to automatically enable compatibility mode for IE9 in the request filter.
This should work, but I haven't tested if the property name is valid or not yet. I also don't have easy access to IE9. So if someone else has an easier way of patching and running this it would be great.
The property is "sakai.X-UA-Compatible", and by default it will not enable any compatibility. i also attached a patch for the config project because i believe a default of
to emulate IE8.