touch event does not work on eink kobo?

[mrbbp]

hello, i tried your code exemple to catch touchevent on my kobo aura (N514) with 4.20.14622 and kepub extension

document.querySelector("main").addEventListener('click', handleClick, false);
 document.querySelector("main").addEventListener('touchstart', handleTouch, false);

function handleClick(event) {
    event.preventDefault();
}

function handleTouch(event) {
    exampleElement.style.background="red";
    event.preventDefault();
}
  }

but the main menu interact over my script.
what's wrong?

oh and alert() don't too (for debugging).

[mrbbp]

nobody answer?
Any idea?
is it the good place for asking an upgrade?
é.

[daniel-j]

The spec states:

Kobo’s eInk and Desktop platforms have limited support for JavaScript, and do not support interactive JavaScript elements.

Also, your code isn't complete: How is the main element used in your markup? Where is exampleElement defined? Extra trailing }

Instead of alert or console.log you can append nodes or set innerHTML of an element.