GoogleChromeLabs/squoosh

No error message if codec fails to load

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#257 opened on Nov 10, 2018

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 (3 comments) (0 reactions) (0 assignees)TypeScript (20,335 stars) (1,431 forks)batch import
UIgood first issuehelp wanted

Description

  1. Open app in new profile
  2. Let service worker install
  3. Go offline
  4. Open SVG icon image

The jpeg encode appears to hang indefinitely, but in reality the codec has failed to load. We should report some form of error.

Contributor guide

Tech stack
typescriptjavascript
Domain
performance
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
basic understanding of service workersfamiliarity with image codecs
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65
Research direction
Investigate the codec loading mechanism in the Squoosh codebase (likely in TypeScript files). Look for where codecs are loaded and any error handling around that process. The issue suggests that when the service worker is installed and the user goes offline, a codec fails to load silently. The fix should add an error message or fallback behavior. Check the codec related modules and service worker registration.