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Markdown tables render with broken formatting in Notebooks despite rendering correctly in markdown file viewer #9747

@narley

Description

@narley

Summary

Markdown tables that render correctly in Warp's markdown file viewer display with broken formatting when pasted into a Warp Drive Notebook.

Problem

Warp renders markdown tables properly when viewing .md files, but Notebooks do not support or correctly render the same markdown table syntax. When copying a well-formatted markdown table from an existing .md file and pasting it into a Notebook, the table formatting breaks.

Image Note: On the left side is the Notebook, on the right is normal markdown file.

Expected behavior

Markdown tables pasted into a Notebook should render the same way they do when viewing a markdown file in Warp — with proper column alignment, borders, and cell separation.

Actual behavior

The table renders with broken formatting in the Notebook, losing its structured layout.

Reproduction steps

  1. Open a markdown file containing a table in Warp (where it renders correctly).
  2. Copy the markdown table content.
  3. Create a new Warp Drive Notebook (or open an existing one).
  4. Paste the table content into the Notebook.
  5. Observe that the table formatting is broken compared to the markdown file viewer.

Artifacts

None attached.

Warp version

0.2026.04.27.15.33.02 (WarpPreview)

Operating system

macOS 15.7.5 (Build 24G624)

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area:editor-notebooksEditors, notebooks, markdown rendering, LSP, and code display.area:warp-driveWarp Drive objects, sync, sharing, cloud object management, and persisted artifacts.bugSomething isn't working.os:macmacOS-specific behavior, regressions, or requests.ready-to-implementThe issue is ready for implementation work.repro:highThe report includes enough evidence that the issue appears highly reproducible.triagedIssue has received an initial automated triage pass.

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