Dash DataTable - fixed_rows={'headers': True} leads to cell overlap
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bug
dash-data-table
P3
- Dominant language
- Python
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- Avg merge
- 2d 7h
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Description
Hello Dash Team,
When creating a DataTable and fixing the headers with: fixed_rows={'headers': True}, the content of the lefter and righter most cells overflows and becomes non-visible.
Righter most cell:

Lefter most cell:

This only happens when fixing headers. Please let me know if this has a workaround. Thanks!
Contributor guide
First steps
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- Open a pull request that references the issue number.
Research direction
Start by reproducing a Dash DataTable using fixed_rows={'headers': True}, focusing on the leftmost and rightmost cells shown in the issue images. Compare the table with headers unfixed; done means the edge-cell content remains visible when headers are fixed.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- data-visualization, frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100