4 ms·Add Undo and Redo to Your Web Application With Cappuccino8 points by sarvesh 18y agogruseom 18y agohttp://news.ycombinator.com/item?id=363855 http://news.ycombinator.com/item?id=363855sarvesh 18y agoI am sorry, I didn't know it was submitted. Looks like the duplicate detection didn't work.