event.originalEvent is undefined when an event triggered manually

[NV]

Reduction: ​http://elv1s.local/files/js/jQuery/originalEvent.html

[addyosmani]

Thanks for submitting a ticket to the jQuery bug tracker. We've checked the link you provided and this is currently not loading (from the looks of it, you may have accidentally posted a local link). If you could kindly repost your reduction on jsFiddle.net we'll be more than happy to evaluate the bug you're experiencing.

[NV]

The proper link is ​http://elv1s.ru/files/js/jQuery/originalEvent.html

[jitter]

​Test case ported to jsFiddle.

This isn't a bug.

The ​Event-object documentation says:

Certain native events may have special properties that can be accessed as properties of the event.originalEvent object.

The ​trigger() documentation (.focus() is short for .trigger("focus")) says:

Although .trigger() simulates an event activation, complete with a synthesized event object, it does not perfectly replicate a naturally-occurring event.

As triggering focus with .focus() isn't a native event, the originalEvent property can't available.

My test case also clearly shows that when the focus event is triggered natively you can access the originalEvent property as documented.