angular-ui/ui-grid

In Firefox 60.0.2 during horizontal scrolling the header is delayed from the rest of the table

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#6,746 opened on Jun 11, 2018

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Browser Firefoxhelp wantedseverity: performance

Description

It's possible to reproduce in tutorial: http://ui-grid.info/docs/#!/tutorial/191_horizontal_scrolling

The picture shows what happens when the scroll moves to the right uigrid

Contributor guide

Tech stack
javascriptangular
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
JavaScriptAngular
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate the horizontal scrolling behavior in Firefox as described. Start by examining the core grid rendering files, such as 'src/js/core/factories/Grid.js' or 'src/js/core/services/GridScroll.js'. Look for how the header column positions are updated during scroll events. Compare with Chrome behavior. The issue may be related to Firefox handling of CSS transforms or scroll event throttling. Also check the tutorial page source (http://ui grid.info/docs/#!/tutorial/191 horizontal scrolling) to reproduce the issue. There are no existing PRs or comments, so this is a fresh investigation.