Validate plugin accept method not working in IE8
I'm using jQuery 1.8.2 and jQuery Validation Plugin 1.10. I'm attempting to use the accept method on a file input to only allow specific file extensions. Works fine in Firefox but doesn't validate in IE7,8 (all file extensions are accepted).
Before posting my code and begging for help I tested the sample form on the jQuery Validation author's web site: http://jquery.bassistance.de/validate/demo/file_input.html -- that also validates properly in FF but allows any file type in IE8.
I didn't find any docs about known limitations for IE. Does anyone know?