jQuery doesn't support postmessage event?

When I use jQuery event listener to handle message event, like below:

$(window).on('message', function(e) {
	var data = e.data; // data = undefined
});

data is undefined! I'm sure that I have passed data to current window. Because if I use "addEventListener", everything goes well!

So, what's the problem?

jQuery might be preprocessing the event's data property, and this operation may not properly support the message event (yet).

Try using the originalEvent property to fetch your data:

$(window).on("message", function(e) {
    var data = e.originalEvent.data;  // Should work.
});

Some browsers use the "onmessage" event. I suggest a little improvement to the previous answer for increased compatibility:

$(window).on("message onmessage", function(e) {
    var data = e.originalEvent.data;
});