horizontally scrollable content of the Table chart exceeds the screen boundaries when downloading the dashboard using the "Download as Image" option

[MallikarjunaReddyN]

Bug description

horizontally scrollable content of the Table chart exceeds the screen boundaries when downloading the dashboard using the "Download as Image" option

Screenshots/recordings

Dashboard:

Image after download:

Superset version

6.0.0

Python version

3.11

Node version

18 or greater

Browser

Chrome

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.

[dosubot]

This is closely related to issue #40428 (which you also filed) about charts overlapping with Table charts during image export. Both stem from the same underlying causes:

1. CSS box-sizing issue — .dashboard-component-chart-holder uses content-box instead of border-box, so its padding overflows the container and causes content to exceed boundaries [1].

2. Scrollable content expansion during export — The image export utility sets overflow: visible and height: auto on scrollable containers to capture full table content, but this causes the table to expand beyond its grid slot horizontally and vertically [1].

Several PRs have addressed this:

• PR #34233 — rewrote image export to capture full table content
• PR #36375 — added box-sizing: border-box globally
• PR #38781 (merged April 2026) — comprehensive fix for ag-grid table rendering during export, including print layout mode switching and column width stabilization

Immediate workaround: Add this CSS override to your dashboard:

.dashboard-component-chart-holder {
    box-sizing: border-box;
}

Since you're on version 6.0.0, you likely don't have the patches from PRs #38781 or #38536. Upgrading to a more recent build that includes these fixes should resolve the horizontal overflow during image download.

To reply, just mention @dosu.

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