→ keypress arrow-keys chrome needsreview
undecided → high
new → open
I have just tested the keydown API page in FireFox, Chrome and Safari (all on the latest stable builds) and the arrow keys are being captured correctly/fine in all of these browsers - I believe you meant to refer to the /keypress page instead.
Testing keypress, I see that there is definitely some issue with Chrome correctly capturing the right, left, up and down keys, but not an issue with it doing so using any other key (as far as I can tell). To ensure this isn't an issue with our API page i setup a test here http://jsfiddle.net/addyosmani/nmNjV/. I have also verified this issue offline and it appears to be consistently failing with arrow keys and keypress.
Marking as valid and flagging for further review.