Bugzilla

By comparing the execution between Firefox and Chrome, I see the the following jquery code executes differently. 

```javascript
          while ((i = a[t++]) && !u.isPropagationStopped()) {
            u.currentTarget = i.elem,
            n = 0;
            while ((o = i.handlers[n++]) && !u.isImmediatePropagationStopped()) u.rnamespace &&
            !1 !== o.namespace &&
            !u.rnamespace.test(o.namespace) ||
            (
              u.handleObj = o,
              u.data = o.data,
              void 0 !== (
                r = ((S.event.special[o.origType] || {
                }).handle || o.handler).apply(i.elem, s)
              ) &&
              !1 === (u.result = r) &&
              (u.preventDefault(), u.stopPropagation())
            )
          }
```

`i.handlers` is the event handlers for `keydown` events for this <input> element, it was only one event handlers in Chrome, but two event handlers in Firefox. 

So the following code get to run in Firefox, but not in Chrome
```

```

(removed)