The issue turned out to be a single line of code that was returning false, when it should be returning true:
https://github.com/wikimedia/apps-android-wikipedia/pull/6184/files#diff-686125b80591056ae47c1f9099ffaf0c9ac421c81148cbb62b4e4de1114c7a0eR778

Google doc for further discussion:
https://docs.google.com/document/d/1CSvm_KgSxurZJWQyoVXvQFCLKWB9Dp4dJk6tisvgAlY/edit?usp=sharing

@Kristbaum @Kerospam Would you mind updating to the very latest version (r/50562-r-2025-12-08), and try one more time?

This is actually by design:
The full-screen gallery uses the dark theme explicitly, therefore any popup dialogs, including link previews, will appear under the dark theme.

Adding Content-Transform-Team since the presentation of these pages (i.e. talk pages as seen through the mobile-html route, not our native Talk presentation) seem to be occasionally lagging in terms of cache.

In T411535#11441112, @HNordeenWMF wrote:

@Dbrant this is out in production, correct?

A quick note on researching which language wikis have a "did-you-know" page:
We could technically go to the English did you know template and look at "other language" versions of that page, which reveals a large number of languages indeed.

Closing this task, since the "spike", as such, is complete.
See the Asana report for WE4.2.9 for details, outcomes, and artifacts (and here is the final doc with recommendations).
Once we decide to proceed with further implementation and rollout, we'll create new task(s) for that work.

New language wikis are added automatically as part of our general release process.
The latest update should already include Toki Pona.

We just need one bit of information from FR-tech: what should be the name of the URL parameter that holds the app_install_id? Is it utm_key or wmf_key etc?

This may be running up against the same issue we've seen in our ecosystem, which is that Google doesn't allow any payment-related transactions to happen inside a WebView (i.e. a webview controlled by a third-party app like ours), for security purposes. All GPay-related transactions must be done in the official system browser app (Safari on iOS, or Chrome on Android).

Hello!
I can't seem to reproduce this error on our devices. Can you confirm a couple of things:

• In your app, are you logged in to your account? (and is the username the same as your name here?)
• I assume your app language is set to Deutsch?
• This could have been a momentary network glitch; Can you try again? Or does this keep happening every time?

In T410704#11420824, @Tsevener wrote:

@Dbrant @cooltey Is Android passing this value for web view payments as well?

Confirmed that making a donation results in FR-tech receiving my app-install-id successfully. (see slack thread in apps-fundraising