Frontmatter
| id | 9348 |
| title | GridDragScroll: Prevent Intervention error on touchmove |
| state | Closed |
| labels | bugai |
| assignees | tobiu |
| createdAt | Feb 28, 2026, 3:07 AM |
| updatedAt | Feb 28, 2026, 3:08 AM |
| githubUrl | https://github.com/neomjs/neo/issues/9348 |
| author | tobiu |
| commentsCount | 1 |
| parentIssue | null |
| subIssues | [] |
| subIssuesCompleted | 0 |
| subIssuesTotal | 0 |
| blockedBy | [] |
| blocking | [] |
| closedAt | Feb 28, 2026, 3:08 AM |
GridDragScroll: Prevent Intervention error on touchmove
tobiu assigned to @tobiu on Feb 28, 2026, 3:07 AM
tobiu
Feb 28, 2026, 3:08 AM
Input from Gemini 3.1 Pro:
✦ I have fixed the issue by checking
event.cancelable !== falsebefore callingevent.preventDefault()ontouchmoveevents inGridDragScroll.mjs.The fix is committed and pushed to
dev.
tobiu closed this issue on Feb 28, 2026, 3:08 AM
When scrolling the grid on a mobile device, the browser throws an intervention error:
[Intervention] Ignored attempt to cancel a touchmove event with cancelable=false, for example because scrolling is in progress and cannot be interrupted.Cause: In
src/main/addon/GridDragScroll.mjs, we are callingevent.preventDefault()ontouchmoveunconditionally. If the browser has already decided the event is part of a native scroll and cannot be cancelled, it throws this warning/error.Fix: We need to check
event.cancelable !== falsebefore callingpreventDefault().See: https://developers.google.com/web/updates/2017/01/scrolling-intervention