Change 997961 had a related patch set uploaded (by Jdlrobson; author: Jdlrobson):

[mediawiki/extensions/MobileFrontend@master] Avoid repaints on collapsed sections

https://gerrit.wikimedia.org/r/997961

@Jdlrobson - is this a regression?

Not a regression no, just a long term problem that we've never been able to address until now (the client preferences API). Given the change in how Google indexes us this could potentially impact our ratings if this feature has significant usage on certain wikis.

Change #997961 merged by jenkins-bot:

[mediawiki/extensions/MobileFrontend@master] Avoid repaints on collapsed sections

https://gerrit.wikimedia.org/r/997961

Test Result - Beta

Status: ✅
Environment: beta
OS: macOS Sonoma
Browser: Chrome
Device: MBA
Emulated Device:NA

Test Artifact(s):

Test Steps

Steps to replicate the issue (include links if applicable):

Open https://en.m.wikipedia.beta.wmflabs.org/wiki/Special:MobileOptions (beta -> https://en.m.wikipedia.beta.wmflabs.org/wiki/Special:MobileOptions) on a small screen
Make sure the expand all sections icon is checked.
Visit https://en.m.wikipedia.org/wiki/Shabana_Basij-Rasikh (beta -> https://en.m.wikipedia.beta.wmflabs.org/wiki/George_Washington) on a slow connection
✅ AC1: The Early life section should be open from the very first render.

Test Result - PROD

Status: ✅
Environment: PROD
OS: macOS Sonoma 14.4.1
Browser: Chrome 124
Device: MBA
Emulated Device:NA

Test Artifact(s):

Test Steps

Steps to replicate the issue (include links if applicable):

Open https://en.m.wikipedia.org/wiki/Special:MobileOptions on a small screen
Make sure the expand all sections icon is checked.
Visit https://en.m.wikipedia.org/wiki/Shabana_Basij-Rasikh on a slow connection
✅ AC1: The Early life section should be open from the very first render.

Special:MobileOptions	Result