I'm having an issue with IE 10 (both Desktop and Metro mode) crashing when inputting into a text input box that is associated with a <datalist>. The program will consume ~10% of CPU resources upon changing the contents of the input, hang, and most of the time the option to "Recover webpage" will appear. Usually I'm lucky enough to get two or three characters into the field before the page completely hangs. The problem seems to be worse when I start entering a string that won't be matched by any elements in the list.
I've tried simplifying the page to only contain the <datalist> along with an <input> and the problem still occurs.
Firefox 18 and Chrome 24 do not have this issue. I'm running Windows 8 64-bit.