Mousedown in Chrome 55

Question

I use the event mousedown in JS to assign an action to my object in a project in question.

With the new Chrome update to version 55 my event no longer works!

Does anyone have any idea how to use the event in this new release?

I currently use the following form.

var iddiv = document.getElementById('meuid');

iddiv.addEventListener('mousedown', function(e) {
});

Thank you all!

iddiv.addEventListener('click', function(e) {
    divSelc = e.target.id;
$("#"+divSelc).css("outline","3px solid red");
});