colorbox + Inline Input Element + Enter Key = colorbox.close() - but not in Chrome

colorbox + Inline Input Element + Enter Key = colorbox.close() - but not in Chrome

Hi guys
 
I'm having trouble with the Color box plugin & i think it may be a problem with JQuery itself.
 
When using an inline colorbox that contains an input element, pressing Enter (KeyCode 13) on said input box causes the color box to close - but only on IE - Chrome etc dont close.
 
Looking at the stack is seems that the colorbox.close() method is being called by JQueries event handling methods but i cant figure out why - or rather why it's only doing it on IE.
 
I looked at the DOM and Jqeury isnt adding any extra event handles to the said input boxes (that i can see - i could be wrong)
 
Here is a jsfiddle demonstrating the problem: http://jsfiddle.net/rv74f/3/
 
Are we looking at a JQuery bug here or am i going crazy?
 
I have also raised this on StackOverflow- but i'm not having much luck - i think this needs the attention of someone who knows JQuery inside and out - and that someone certainly isnt me!
 
Any direction offered would be most welcome!
 
Regards
 
Jordon