问题
jQuery uses event bubbling, but is there a way to do event capturing ie in the descending order as explained here
The specific case is the following where host A & host B are on the same domain like :
www.mydomain.com and xxx.mydomain.com.
Of course the Same Origin Policy makes it that it is not possible to trigger on event in the iframe. However I just would like to know if user has clicked on $('#hostA') and pass on the event to the <iframe>.
<div id="hostA">
<iframe id="hostB">
</div>
回答1:
No, jQuery does not support this and it never can -- IE has no way to implement a capturing event.
来源：https://stackoverflow.com/questions/6354079/event-capturing-with-jquery