#25348·highcharts

Unhandled scrollwheel events bubble up to container

Author: PingvinBCreated Sep 16, 2026Updated Sep 17, 2026
LabelsType: BugProduct: Highcharts Maps

Expected behaviour

When the Highcharts map can't handle all scrollwheel events, they should instead be discarded instead of letting them bubble up to the container holding the map.

Actual behaviour

When scrolling with the mouse wheel a Highcharts map that's in a scrollable container, some scroll events get skipped being handled by Highcharts and they bubble up to the container holding the map and scroll it instead.

Live demo with steps to reproduce

https://jsfiddle.net/zdxbc4y7/1/

The demo above is a fork of the "Life expectancy by country" demo with a wrapper container element added that is scrollable.

Demo video: https://github.com/user-attachments/assets/9f2a39c0-a537-40fc-b768-3df03ff8a14c

Product version

Highcharts Maps v13.0.2 (2026-08-27) (Current latest from https://code.highcharts.com/maps/highmaps.js) and Highcharts Maps v13.0.0-modified (2026-08-14) (Current nightly from https://cdn.jsdelivr.net/gh/highcharts/highcharts-dist@nightly/highmaps.js (which seems to be older than the latest current based on the date?))

Affected browser(s)

Firefox 155.0.1 (64-bit) (Windows 11) Vivaldi 8.2.4133.52 (Official Build) (64-bit) (Windows 11)