thunderbird / thunderbird/thunderbird-android

<meta name="viewport"> is missing initial-scale=1

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#7,162 5 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Kotlin
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Forks
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Merged PRs (30d)
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Description

Checklist
  • I have used the search function to see if someone else has already submitted the same bug report.
  • I will describe the problem with as much detail as possible.
App version

6.7.10

Where did you get the app from?

Other

Android version

13

Device model

Pixel 7 Pro

Steps to reproduce

example mail
This bug affects all mails of the same sender.

Expected behavior

grafik

Actual behavior

K-9 (Sanitizer) adds this meta tag which breaks the layout of the mail above
<meta name="viewport" content="width=device-width">

grafik

Logs

No response

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 with the attached example mail and reproduce how the K-9 sanitizer produces the viewport meta tag on Android 13. Trace the sanitizer behavior responsible for the shown HTML, then verify that the corrected viewport declaration no longer breaks the mail layout.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, html, kotlin
Domain
mobile
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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