This sounds very much like the bug at http://connect.microsoft.com/IE/feedback/details/808033/ie11-two-reproducible-crashes-on-assigning-the-value-of-an-input-e

This sounds very much like the bug at http://connect.microsoft.com/IE/feedback/details/808033/ie11-two-reproducible-crashes-on-assigning-the-value-of-an-input-element-with-javascript http://connect.microsoft.com/IE/feedback/details/808033/ie11... The (surprising) solution is to first assign a space character, then the empty string. So (I'm guessing), in that http://jsfiddle.net/dahjelle/zVjfY/ http://jsfiddle.net/dahjelle/zVjfY/ code, change field.value = clearValue; to field.value = ' '; field.value = clearValue;