# \[Violation\] Added non-passive event listener to a scroll-blocking 'wheel' event

**URL:** <https://discourse.processing.org/t/violation-added-non-passive-event-listener-to-a-scroll-blocking-wheel-event/35624>\
**Category:** p5.js\
**Created:** [March 8, 2022, 10:37pm UTC](https://discourse.processing.org/t/violation-added-non-passive-event-listener-to-a-scroll-blocking-wheel-event/35624 "2022-03-08T22:37:37Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![pirela](https://avatars.discourse-cdn.com/v4/letter/p/3e96dc/32.png) [@pirela](https://discourse.processing.org/u/pirela)\
**Post date:** [March 8, 2022, 10:37pm UTC](https://discourse.processing.org/t/violation-added-non-passive-event-listener-to-a-scroll-blocking-wheel-event/35624/1 "2022-03-08T22:37:37Z")

</div>

I got this violation info ( to get it, javascript console must have ‘Verbose’ level checked) when my draw loop includes an _orbitcontrol_ .  
Message appears at the first use or move of the mouse on the canvas. Without orbitcontrol, no message.  
I don’t really care of, but it seems that some fix can improve performance :

> Consider marking event handler as ‘passive’ to make the page more responsive. See [https://www.chromestatus.com/feature/5745543795965952](https://www.chromestatus.com/feature/5745543795965952).

should i have to create an issue on P5 ?