apache/superset

"Show chart description" causes bottom of x-axis to be cut off heatmap in 5.0.0rc3

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#33737 opened on Jun 11, 2025

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 (7 comments) (0 reactions) (0 assignees)TypeScript (72,837 stars) (17,291 forks)batch import
#bug:cosmetic#bug:regressiongood first issueviz:charts:heatmap

Description

Bug description

The chart has plenty of room on the dashboard and I can see the x-axis fully when the description is hidden. But when I show it, the x-axis gets blocked:

Image

Here's the same chart looking good once I hide the description:

Image

This is a regression from 4.1.2 where this did not occur. Maybe only affects heatmap? Other chart types work as expected with description shown.

Screenshots/recordings

No response

Superset version

master / latest-dev

Python version

3.9

Node version

16

Browser

Firefox

Additional context

No response

Checklist

  • I have searched Superset docs and Slack and didn't find a solution to my problem.
  • I have searched the GitHub issue tracker and didn't find a similar bug report.
  • I have checked Superset's logs for errors and if I found a relevant Python stacktrace, I included it here as text in the "additional context" section.

Contributor guide

Tech stack
typescriptreact
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.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Understanding of ReactKnowledge of CSS layoutFamiliarity with Superset frontend structure
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Investigate the chart description toggle functionality in Superset's Heatmap chart component. The bug likely stems from CSS overflow or container sizing when the description element is displayed. Check recent commits that may have introduced the regression, particularly in files related to chart description layout. Look at the superset frontend/src/components/Chart folder for relevant components and styles.