GEO-BON/bon-in-a-box-pipeline-engine

Support null output in viewer

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#379 opened on May 6, 2026

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 (2 comments) (0 reactions) (1 assignee)JavaScript (5 forks)auto 404
buggood first issue

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Description

Describe the bug In the viewer, outputs left null are not handled properly. We can see a 404 for a missing CSV, or blank images for a missing image.

This should be supported since pipelines can have options that leave some outputs null. For example, the protconne pipeline has a time series option.

Steps To Reproduce

  1. In "Run pipeline", choose the protconn WDPA pipeline.
  2. Parameterize the run, with the time series option turned off.
  3. Run the pipeline.
  4. Open the results in the viewer.
  5. Try to visualize the missing outputs.

Expected behavior I should either remove the output from the left section or leave it with the "No output" message like in the run UI. I think removing it makes it cleaner since this is a demonstration UI.

Contributor guide

Research direction
Examine the viewer component code to find where outputs are rendered and add a check for null values to either hide or display a placeholder.
Tech stack
javascript
Domain
frontend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
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
JavaScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70