mattermost-community/focalboard

Bug: card API 500 error when card descriptions are next to each other

Open

#4405 opened on Dec 26, 2022

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 (6 comments) (0 reactions) (1 assignee)TypeScript (26,187 stars) (2,542 forks)user submission
Awaiting Submitter ActionBugHelp WantedSev/2Up for grabs

Description

Steps to reproduce the behavior

  1. Create a card with two description entries side by side, like in the screenshot below.
  2. Call /boards/{board_id}/cards on a corresponding board
  3. Observe 500 response and an error Block2Card fail: invalid type for field 'contentOrder item' in the logs.

Screenshots (optional)

image

Edition and Platform

  • Focalboard 7.5.2
  • Mattermost Version: 7.5.1
  • Database Schema Version: 95

Contributor guide

Tech stack
gotypescriptreact
Domain
backendapi
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
GoTypeScriptFocalboard setup
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
The error occurs when two card descriptions are placed side by side, causing a 500 response from the `/boards/{board id}/cards` API. The log shows 'Block2Card fail: invalid type for field 'contentOrder item''. Investigate the Block2Card function in the server code (likely Go) and the validation of the contentOrder field. Understand why adjacent descriptions produce an invalid type and implement proper handling or sanitization. The issue has an assignee but no linked PR, so reach out to maintainers for any existing work.