# Simple script only works in Safari

**URL:** <https://forum.kirupa.com/t/simple-script-only-works-in-safari/309248>\
**Category:** web dev\
**Created:** [May 10, 2010, 9:52pm UTC](https://forum.kirupa.com/t/simple-script-only-works-in-safari/309248 "2010-05-10T21:52:34Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![BenBart](https://avatars.discourse-cdn.com/v4/letter/b/6de8d8/32.png) [@BenBart](https://forum.kirupa.com/u/BenBart)\
**Post date:** [May 10, 2010, 9:52pm UTC](https://forum.kirupa.com/t/simple-script-only-works-in-safari/309248/1 "2010-05-10T21:52:34Z")

</div>

This script only seems to be working in Safari, but I would like it to run in safari and firefox. Any clue why it doesn’t work in firefox?

Thank you for your time.

```auto
function init()
{
    var myCanvas = window; //Using "window" for testing
    myCanvas.addEventListener("mousedown", traceEventType);

}

window.onload = init;

function traceEventType(e)
{
    alert(e.type);
}

```