This causes me no end of grief. Credit card fields where you can't enter spaces, phone number fields where you can't format the numbers like a phone number. It's literally a few lines of code to pull out just the numbers! So infuriating.
Or when putting serial numbers: some show the input box separated by dashes(maybe so that we put it correctly while typing.) But, when I try to paste it in, either it just rejects or simply fills the first block making me copy the sn block by block. If I could, I would have beaten those dialogue boxes with a baseball bat.
