n.news.naver.com - Thin line displayed on top of the page after scrolling up/down

[webcompat-bot]

URL: https://n.news.naver.com/article/001/0012456219?cds=news_my

Browser / Version: Firefox Mobile 90.0
Operating System: Android 11
Tested Another Browser: Yes Chrome

Problem type: Something else
Description: A thin white line on the top
Steps to Reproduce:
When scrolling up and down, a thin white line appears on top of this page, behind the status bar. I've come across this appearance with Google Pixel 4a.

View the screenshot

Browser Configuration

• gfx.webrender.all: false
• gfx.webrender.blob-images: true
• gfx.webrender.enabled: false
• image.mem.shared: true
• buildID: 20210610185818
• channel: beta
• hasTouchScreen: true
• mixed active content blocked: false
• mixed passive content blocked: false
• tracking content blocked: false

View console log messages

From webcompat.com with ❤️

[softvision-raul-bucata]

We appreciate your report. I was not able to reproduce the issue. Upon scrolling the page, there is no white line present in the header of the page:

@softvision-oana-arbuzov Could you take a look at this please using your Google Pixel device?

Tested with:
Browser / Version: Firefox Nightly 91.0a1 (2015816523 -🦎91.0a1-20210614095307🦎)/
Operating System: Samsung A51 (Android 11) -1080 × 2400 pixels 20:9 aspect ratio (~405 ppi density)

Suggestion: Try clearing cache/data/cookies, disable Ad-blocker (if available), or use a clean profile, and check again? If there are any changes made to the default settings of the browser (e.g. in about: config) please revert to the default settings and try again. Also, have the required cookies been accepted for this page?

[softvision-oana-arbuzov]

I was able to reproduce the issue, while Dark theme is enabled.

Tested with:
Browser / Version: Firefox Nightly 91.0a1 (🦎 91.0a1-20210627094553)
Operating System: Google Pixel 5 (Android 11) - 1080 x 2340 pixels, 19.5:9 ratio (~432 ppi density)

Reopening an moving to Needsdiagnosis for further investigation.

[karlcow]

Moved to mozilla-mobile/fenix#23715