mozilla / mozilla/readability

understandingwar.org shows end notes instead of main body

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has-website-testcase reader-mode-has-issues
Dominant language
JavaScript
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Forks
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Description

Moved from: https://bugzilla.mozilla.org/show_bug.cgi?id=2051603

Environment:
Operating system: Windows
Firefox version: Firefox 152.0.3 (release)

Preconditions:

  • Clean profile

Steps to reproduce:

  1. Navigate to: https://understandingwar.org/research/russia-ukraine/russian-offensive-campaign-assessment-june-27-2026/
  2. Trigger reader mode from the toolbar and observe

Expected Behavior:
Reader mode renders the page correctly

Actual Behavior:
Reader mode is broken

Notes:

  • Reproducible on the latest Firefox Release and Nightly
  • Reproducible regardless of the ETP setting
  • Works as expected using Chrome

Created from webcompat-user-report:c6b45216-30e4-4a32-9819-72e2fd0bfdd1

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the reported URL in Firefox Reader Mode and compare the extracted content with Chrome's result. Trace why the main body is omitted and end notes are selected; the issue is resolved when the page's main article content renders correctly in Reader Mode.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
web-dev
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
48/100

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