How to get JQuery.trigger('click'); to initiate a mouse click

You need to use jQuery('#bar')[0].click(); to simulate a mouse click on the actual DOM element (not the jQuery object), instead of using the .trigger() jQuery method.

Note: DOM Level 2 .click() doesn't work on some elements in Safari. You will need to use a workaround.

http://api.jquery.com/click/

You just need to put a small timeout event before doing .click() like this :

setTimeout(function(){ $('#btn').click()}, 100);

This is JQuery behavior. I'm not sure why it works this way, it only triggers the onClick function on the link.

Try:

jQuery(document).ready(function() {
    jQuery('#foo').on('click', function() {
        jQuery('#bar')[0].click();
    });
});